Научная статья на тему 'THE CROSS-CULTURAL DIFFERENCES IN PERCEIVED STRESS OF THE COVID-19 PANDEMIC IN SCHOOLCHILDREN FROM RUSSIA AND KYRGYZSTAN WITH NORMAL AND HIGH LEVELS OF ANXIETY AND DEPRESSION'

THE CROSS-CULTURAL DIFFERENCES IN PERCEIVED STRESS OF THE COVID-19 PANDEMIC IN SCHOOLCHILDREN FROM RUSSIA AND KYRGYZSTAN WITH NORMAL AND HIGH LEVELS OF ANXIETY AND DEPRESSION Текст научной статьи по специальности «Фундаментальная медицина»

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Ключевые слова
COVID-19 PANDEMIC / PSYCHOLOGICAL OUTCOMES / STRESS / ANXIETY / DEPRESSION / SCHOOLCHILDREN

Аннотация научной статьи по фундаментальной медицине, автор научной работы — Sitnikova Maria A., Proshina Ekaterina, Deviaterikova Alena, Malykh Sergey, Moiseeva Oksana

Children and youth of school age form a special population group highly sensitive to various stressors and negative effects in everyday life. The COVID-19 pandemic crisis characterized by uncertainty, vulnerability, changes in quality of life together with urgent transition to distant/online learning affected significantly psychological well-being of children and youth. The aim of this study was to assess the cross-cultural differences in actual stress in Russian and Kyrgyz schoolchildren with high and low levels of anxiety and depression during the initial stage of the COVID-19 pandemic and after a year life during the pandemic. The descriptive cross-sectional study was conducted via an online survey completed by total 1834 schoolchildren aged from 13 to 18 from Russia and Kyrgyzstan, the periods of survey: 10th May - 10th June, 2020; 18th May -15th June, 2021. The Perceived Stress Scale and Hospital Anxiety and Depression Scale were used to assess stress, anxiety and depression scores. The findings suggest that there are cross-cultural differences in perceived stress amongst schoolchildren with high level of depression and anxiety: Russian respondents in 2021 demonstrated less pronounced index of the perceived stress than Kyrgyz schoolchildren. The stress level of Kyrgyz schoolchildren increased significantly in 2021 in comparison to the period of outbreak of the pandemic. In 2021 in both countries we found the same pattern: girls had significantly more pronounced stress than boys. The results disclose important aspects of the impact of COVID-19 on schoolchildren and demonstrate the emerging need of psychological aid and for supporting schoolchildren mental health.

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Текст научной работы на тему «THE CROSS-CULTURAL DIFFERENCES IN PERCEIVED STRESS OF THE COVID-19 PANDEMIC IN SCHOOLCHILDREN FROM RUSSIA AND KYRGYZSTAN WITH NORMAL AND HIGH LEVELS OF ANXIETY AND DEPRESSION»

Original scientific paper UDK:

364.624.6-057.874:[616.98:578.834(571:575.2) Received: May, 06.2022. 159.944.4.072-057.874

Revised: July, 11.2022. doi: 10.23947/2334-8496-2022-10-2-27-37

Accepted: July, 17.2022. ^ CheQk (or updates

The Cross-Cultural Differences in Perceived Stress of the COVID-19 Pandemic in Schoolchildren from Russia and Kyrgyzstan With Normal and High Levels of Anxiety and Depression

Maria A. Sitnikova1"4 , Proshina Ekaterina2 , Deviaterikova Alena3 , Malykh Sergey4 , Moiseeva Oksana1 , Ananieva Marina1

Research and Project Centre for Cognitive Neuroscience and Neurotechnologies, Belgorod National Research University:

Belgorod, Russia, e-mail: sitnikovamary46@gmail.com, oksana14.08.1317@gmail.com, rudofilova.marina@yandex.ru laboratory of Psychophysiology of Individual Differences, Scientific Research Institute of Neurosciences and Medicine,

Novosibirsk, Russia, e-mail: proshinaea@physiol.ru 3Research Institute for Brain Development and Peak Performance, Peoples' Friendship University of Russia, Moscow, Russia,

e-mail: alena.deviaterikova@gmail.com "Centre for Interdisciplinary Research in Education, Russian Academy of Education, Moscow, Russia,

e-mail: malykhsb@mail.ru

Abstract: Children and youth of school age form a special population group highly sensitive to various stressors and negative effects in everyday life. The COVID-19 pandemic crisis characterized by uncertainty, vulnerability, changes in quality of life together with urgent transition to distant/online learning affected significantly psychological well-being of children and youth. The aim of this study was to assess the cross-cultural differences in actual stress in Russian and Kyrgyz schoolchildren with high and low levels of anxiety and depression during the initial stage of the COVID-19 pandemic and after a year life during the pandemic. The descriptive cross-sectional study was conducted via an online survey completed by total 1834 schoolchildren aged from 13 to 18 from Russia and Kyrgyzstan, the periods of survey: 10th May - 10th June, 2020; 18th May -15th June, 2021. The Perceived Stress Scale and Hospital Anxiety and Depression Scale were used to assess stress, anxiety and depression scores. The findings suggest that there are cross-cultural differences in perceived stress amongst schoolchildren with high level of depression and anxiety: Russian respondents in 2021 demonstrated less pronounced index of the perceived stress than Kyrgyz schoolchildren. The stress level of Kyrgyz schoolchildren increased significantly in 2021 in comparison to the period of outbreak of the pandemic. In 2021 in both countries we found the same pattern: girls had significantly more pronounced stress than boys. The results disclose important aspects of the impact of COVID-19 on schoolchildren and demonstrate the emerging need of psychological aid and for supporting schoolchildren mental health.

Keywords: COVID-19 pandemic, psychological outcomes, stress, anxiety, depression, schoolchildren.

Introduction

The COVID-19 pandemic has proven to become a global stressful situation for the whole world. As a result, fundamental changes took place in people's daily lives - some people lost their jobs, some had to adapt to new, remote working conditions, home confinement, lockdowns, social distancing, constant fear of infection (Salari, et al., 2020). However, the psychological impact of the COVID-19 pandemic is much more serious than the somatic consequences of the infection (Espinola, et al., 2016). The COVID-19 pandemic led to psychological difficulties that occurred not only in those who were infected and recovered, but also in many people who were not directly affected.

From a psychological point of view, the majority of people feel uncertainty, unpredictability, confusion on the one hand, and at the same time the importance of what is happening, on the other hand. The emergence and development of pandemics usually affect the entire population of the planet

'Corresponding author: sitnikovamary46@gmail.com

T^j I © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.Org/licenses/by/4.0/).

and lead to impairment of the psychological well-being of people. Prolonged home confinement, lack of direct interpersonal communication, lack of physical and social activities, disappointment and boredom from the monotony of the quarantine lifestyle are among the aggravating factors in formatting of adverse psychological consequences. Therefore, among most typical psychological responses towards worldwide epidemics and pandemics are worries, anxiety, distress, depression, nonspecific and unguided fears (Taylor, 2019). During the COVID-19 pandemic social and physical distancing as well as quarantine were imposed by the government due to unknown course of the disease and high risk of mass spread of poorly understood infection, lack of proven treatment and prevention measures, that escalated the distress caused by a pandemic (Maunder, et al., 2006; Shanahan, et al., 2022), and could lead to many immediate and long-term negative socio-economical and psychological consequences for people (Meledandri and Trimarco, 2021).

Psychological well-being and mental health of individuals are mostly impaired during pandemics, including the COVID-19 pandemic (Pfefferbaum and North, 2020; Basheti, Mhaidat and Mhaidat, 2021). According to the research findings during previous pandemics (Matsuishi, et al., 2012; Bukhari, et al., 2016) increased levels of stress, anxiety, depression and traumatic stress often happened among individuals all over the world. In many studies on the outcomes of the initial period of the COVID-19 pandemic in winter-spring of 2020 they have reported the mentioned above negative psychological states as well as post-traumatic stress, anger, insomnia, confusion, grief and numbness in various samples of population (Tull, et al., 2020; Cao, et al., 2020; Xiang, et al., 2020; Kang, et.al., 2020; Wang C., et al., 2020; Mazza, et al., 2020; Hyland, et al., 2020). All these reactions hindered adaptation to the new social and environmental requirements.

Up to now the pandemic has been going on for more than two years already, many people learned to adapt to the situation of pandemic. At the initial stage of the COVID-19 pandemic the stressful events were uncontrollable, unpredictable, overloading and exceeding the capacity to adapt, they affect greatly people's everyday life. With a progress of the pandemic, more and more people adapted to the stress of COVID-19, as an adaptation to stress is a manifestation of general mental health. The findings of some studies, revealing that the level of stress in 2021 if compared to 2020 was lower, proved it (Lupe, Keefer and Szigethy, 2020). On the opposite, a maladaptation to stress can lead to the development of sustainable depressive and anxiety symptoms (Muratori and Ciacchini, 2020). Moreover, adaptation to a pandemic may have a gender aspect: females have more difficulties associated with internalization, and males with externalization (Lohaus, et al., 2004).

Children and youngsters are vulnerable to various kinds of psychological and social negative impacts due to their personal immaturity and emotional instability. They could either underestimate or greatly overestimate threats and risks of the coronavirus pandemic. Stressors such as monotony of homestay lifestyle, frustration, lack of face-to-face communication with classmates, friends and teachers, lack of personal space at home, and family financial losses during quarantine could cause long-term adverse psychological and mental health outcomes in children (Wang G., et al., 2020). For example, introducing a new standard in social relations - social distancing - was harmful for socialization that's an important protective factor for emotional well-being in adolescents (Singh and Singh, 2020; Dalton, Rapa and Stein, 2020). Schools closure negatively affected the youngsters' daily routine (Qiu, et al., 2020). Children's leisure out of home was canceled: all creative studios, sports were closed, they were not allowed to go out with friends. Another important problem was moving the most part of everyday life in the virtual world due to lockdown.

The education system has been severely impacted by the COVID-19 crisis. The forced emergency transition of the education to the mode of distance and online education intensified the negative effects of the pandemic and significantly affected the quality of the educational process on all levels of education - from primary to high school education. Teachers and students, in addition to the general psychological problems caused by the pandemic, faced additional stress factors - the abruption of traditional school and university learning process, limited teaching resources and the methodological unpreparedness of some teachers to online education, the impersonal format of evaluating the results of mastering educational programs and exams grading, the lack of sufficient and important distance learning technical aids. Although online education was not new, but it was used as an additional resource but not as the main model in educational process. The interaction between subjects of educational process moved to impersonal format with the help of Teams, Zoom and other online platforms and programs (Harris, 2020). And soon after the pandemic outbreak an important paradox of online format of learning became obvious - students, whom teachers were supposed to teach distantly, were so-called "digital natives", those who from early childhood had high level technological knowledge and skills as they grew up in a digital environment and had digital socialization (Kamarianos, et al., 2020). This digital literacy gap between students and

educators could be harmful as reducing the traditionally authority and to some extent dominant role of the teacher. Therefore, all teachers, regardless of their IT competencies, had to think about changing the format of the lessons, the way of presenting information (Huber and Helm, 2020).

The COVID-19 pandemic affected the entire world and became a unique opportunity for scientists to assess the impact of stress on different samples within different cultures. People from different countries have their own unique understanding of the world, thus the response to stress can be culturally dependent. People are not passive recipients of social models of behavior and attitudes; they actively build their own perception of the world, based on their cultural traditions (Pines and Zaidman, 2003). For example, when comparing stress response in American and Asian cultures, it was found that Asians did not seek for social support in a stressful situation unlike Americans (Taylor and Asmundson, 2020). Cross-cultural studies showed that different cultures adhered to different patterns of stress response and of their relations with loved ones in a stressful situation (Adams and Boscarino, 2005).

The aim of this study was to find out if there were cross-cultural differences in perceived stress in Russian and Kyrgyz schoolchildren with high and low anxiety and depression levels during the initial stage of COVID-19 pandemic in 2020 and one year after in 2021 when the situation with pandemic was still severe and people suffered a lot for this period, and schoolchildren had already an experience of online / distant learning with more than half of a year.

The hypotheses of the present study are:

H1 - Schoolchildren are at risk regarding the development of stress and psychological symptoms, such as anxiety and depression, during the COVID-19 pandemic.

H2 - Schoolchildren with high as well as with normal levels of anxiety and depression from Russia and Kyrgyzstan demonstrate more pronounced perceived stress in 2021 in comparison to the initial stage of the COVID-19 pandemic in 2020.

H3 - There are cross-cultural differences in perceived stress in Russian and Kyrgyz schoolchildren with high levels of anxiety and depression both in 2020 and 2021.

Materials and Methods

Participants and Procedure

Thestudy involved 1834 students aged 13to 18 from Russia and Kyrgyzstan (Table 1). Atthe first stage (2020) 715 students tookpartin the study, and atthe second stage (2021)-1119 students from the same schools.

In Russia and Kyrgyzstan quarantine measures were introduced at the end of March, and since the 10th of April 2020 the learning process was switched into online mode. The data presented in the paper is a part of a larger project. There were two data collection periods in this project: (1) between 10th May, 2020 and 10th June, 2020; (2) between 18th May, 2021 and 15th June, 2021. The first period covered a time frame of the initial period of the COVID-19 pandemic, when lockdown, urgent school closures and online schooling were implemented in these countries. The second period time frame corresponded to the stabilization of the situation with COVID-19 pandemic in Russia and the new wave of pandemic expectation in Kyrgyzstan. Herewith in both countries preventing measures, such as social distancing and obligatory mask wearing were implemented, school children were back to offline schooling after at least half a year of distant/online learning experience.

This descriptive cross-sectional study was conducted via an online survey. The survey consisted of demographic variables, such as age, gender, year of schooling, and two validated self-reporting questionnaires - Hospital Anxiety and Depression Scale (HADS) and Perceived Stress Scale-10 (PSS-10). The data was collected using the DigitalPsyTools online platform (https://digitalpsytools.ru/), developed in the Center for Interdisciplinary Research in Education of the Russian Academy of Education.

Measures

Hospital Anxiety and Depression Scale (HADS, Zigmond and Snaith, 1983) was used to assess general levels of anxiety and depressive symptoms. The questionnaire includes 14 questions and 2 subscales: HADS-A consists of seven specifically designed items to measure the severity of anxiety symptoms, and the HADS-D consists of seven items to specifically measure the severity of depressive symptoms. Each item in HADS was rated on a four-point Likert scale, giving maximum score of 21. Total scores were divided into three categories: normal (0-7), borderline abnormal (8-10), and abnormal (11-28) cases of anxiety and depression. The Russian version of HADS questionnaire was used in the both countries (validation by Shal'nova, et al., 2014). Students both in Russia and Kyrgyzstan completed

questionnaires in Russian. In Kyrgyzstan, schoolchildren that study in Russian, took part in the survey.

The Perceived Stress Scale (PSS, Cohen, Kamarack and Mermelstein, 1983; Zhou and Lin, 2016) was used to assess stress levels in young people. The scale comprises of 10 items rated in our study on a five-point Likert scale, ranging from 'never' to 'very often'. The PSS-10 is a reliable measure of subjectively perceived stress levels over the past month. It has a two-dimensional structure, with one dimension related to perceived stress and the second related to stress resilience. In our study we used only total PSS score. The Russian version of PSS-10 was used to assess the actual stress level of respondents (Ababkov, et al., 2016).

We conducted a comparison of four independent groups of schoolchildren: Russian 2020, Kyrgyz 2020, Russian 2021, and Kyrgyz 2021.

Demographic features (age, gender) of the four cohorts were summarized using descriptive statistics (mean and standard deviation). Possible differences in demographic variables between groups were compared using Mann-Whitney test for continues variables. Study primary outcomes including perceived stress, anxiety and depression mean scores, and anxiety and depression severity levels were assessed using descriptive statistics. To assess the difference between groups/categories of anxiety, depression, perceived stress, we used the non-parametric Kruskal-Wallis test, since the variables did not have a normal distribution. After the discovery of statistically significant differences between groups, post hoc pairwise comparisons were made using the Mann-Whitney test. The analysis was performed using the SPSS v. 24.0 statistical package (IBM, USA).

Results

Demographic characteristics

Demographic data (Table 1) showed that among Russian participants during the first data collection period in 2020 there were 595 schoolchildren (64,2 %, 382 girls), during the second data collection period in 2021 there were 639 schoolchildren (56,49%, 361 girls). Among Kyrgyz participants during the first data collection period in 2020 there were 120 schoolchildren (58,3%, 70 girls), during the second data collection period in 2021 there were 480 schoolchildren (56,45%, 271 girls). Mean age of Russian students in 2020 was 15,53 (SD = 1,15), in 2021 - it was 15,28 (SD = 1,16). Mean age of Kyrgyz students in 2020 was

16.04 (SD =1,04), in 2021 - it was 15,94 (SD = 0,86). The mean age in all groups were in the range of

15.5 and 16 years old.

Table 1

Sample summary

Sample N Russian 2020 Kyrgyz 2020 Russian 2021 Kyrgyz 2021

Females 1084 382 70 361 271

Males 750 213 50 278 209

All 1834 595 120 639 480

Age (M and SD) 15.58(1.11) 15.53(1.15) 16.04(1.04) 15.28(1.16) 15.94 (0.86)

Note. M - mean score, SD - standard deviation, N - number

Group differences in anxiety and depression levels

The descriptive statistics is presented in Table 2. The mean score of depression subscale for Russian schoolchildren in 2020 was 4.99 (SD 3.36), in 2021 was 5.17 (SD 3.52); for Kyrgyz schoolchildren in 2020 it was 6.18 (SD 3.5), in 2021 it was 5.68 (SD 3.2). The mean score of anxiety subscale for Russian schoolchildren in 2020 was 6.21 (SD 3.56), in 2021 was 6.54 (SD 3.67); for Kyrgyz schoolchildren in 2020 it was 6.63 (SD 3.89), in 2021 it was 7.15 (SD 3.86).

Table 2

Descriptive statistics of anxiety, depression and perceived stress in 4 groups

Group measure N M SD Min Max

R2020 Perceived stress (total score PSS-10) 597 25,50 6,139 10 44

Anxiety (HADS) 595 6,21 3,558 0 18

Depression (HADS) 595 4,99 3,356 0 17

K2Q20 Perceived stress (total score PSS-10) 120 25.88 6,06 13 40

Anxiety (HADS) 120 6,63 3,892 0 17

Depression (HADS) 120 6,18 3,498 0 14

R2021 Perceived stress (total score PSS-10) 639 25,83 5,838 10 45

Anxiety (HADS) 639 6,54 3,664 0 18

Depression (HADS) 639 5,17 3,523 0 17

K2Q21 Perceived stress (total score PSS-10) 480 27,06 6,398 10 46

Anxiety (HADS) 480 7,15 3,855 0 20

Depression (HADS) 480 5,68 3,214 0 16

Note. R2020 - Russian student in 2020, K2020 - Kyrgyz students in 2020; R2021 - Russian student in 2021, K2021 - Kyrgyz students in 2020; M - mean score, SD - standard deviation, N - number

Cross-cultural comparison showed that mean scores of anxiety subscale was significantly higher in Kyrgyz (7.15) to Russian (6.54) respondents in 2021 (U=140867, Z = -2.343, p = 0.019). The comparison of depression level between countries demonstrated significantly higher value in Kyrgyz respondents in 2021 (U=137183, Z = -3.035, p = 0.002) and in 2020 (U=28485, Z = -3.510, p < 0.0001). The main results in dynamics of anxiety and depression levels in Russian respondents from 2020 to 2021 suggested that the scores slightly increased. The same situation was with anxiety level in Kyrgyz respondents. However, the mean values of depression level in Kyrgyz respondents slightly decreased in 2021 (5.68) in comparison to 2020 (6.18).

The anxiety and depression severity levels in 4 groups were assessed according to scores corresponding to three categories: normal (0-7), borderline abnormal (8-10), and abnormal (11-28) cases of anxiety and depression. The individuals were afterwards grouped as Group 1 with normal and Group 2 with high (borderline abnormal + abnormal) levels of depression and anxiety (Table 3).

When analyzing the severity levels of depression, we found 22.9% of Russian schoolchildren and 38.3% of Kyrgyz with high levels of depression during the first stage of survey; and 26.4% of Russian schoolchildren and 29.8% of Kyrgyz with high levels of depression during the spring 2021. There were 32.9% of Russian schoolchildren and 37.5% of Kyrgyz with high levels of anxiety during the first stage of survey; and 38.3% of Russian schoolchildren and 42.5% of Kyrgyz with high levels of anxiety during the spring 2021. We found an increase in number of Russian schoolchildren with high levels of depression and anxiety. However, the percentage of schoolchildren with high level of depression decreased during the second year of pandemic in Kyrgyzstan.

Table 3

The percentage of girls and boys in groups with normal and high levels of anxiety and depression in 4 groups

Measure

group gender Level of Depression Level of Anxiety

normal high normal high

R2020 male 27.4% 8.4% 24.5% 11.3%

female 49.7% 14.5% 42.5% 21.7%

total 77.1% 22.9% 67.1% 32.9%

K2020 male 25% 16.7% 28.3% 24.2%

female 36.7% 21.6% 34.2% 13.3%

total 61.7% 38.3% 62.5% 37.5

R2021 male 31.7% 11.7% 29.7% 12.8%

female 41.9% 14.7% 31.9% 25.6%

total 73.6% 26.4% 61.7% 38.3%

K2Q21 male 31% 12.5 30.2% 13.3%

female 39.2 17.3 27.3% 29.2%

total 70.2% 29.8% 57.5% 42.5%

Note. R2020 - Russian student in 2020, K2020 - Kyrgyz students in 2020; R2021 - Russian student in 2021, K2021 - Kyrgyz students in 2020.

The analysis revealed that girls had significantly higher levels of anxiety than boys in groups of Russians with a normal level of anxiety in 2020 (U = 14177, Z = -3.909, p < 0.0001) and in 2021 (U = 14868, Z = -4.038, p < 0.0001); and in group of Kyrgyz schoolchildren in 2021 with a normal level of anxiety (U = 6653, Z = -4.349, p < 0.0001). There were no significant differences between male and females in all groups with normal levels of depression.

The analysis in groups with high levels of anxiety and depression from both countries showed the same pattern of negative emotional reactions: girls are more anxious by COVID-19 than boys among the cohort of Russians in 2020 (U = 3580, Z = -2.002, p = 0.045); and suffered more from pronounced depressive symptoms in the cohort of Russians in 2021 (U = 2718, Z = -2.603, p = 0.009). The opposite model of statistically significant pronounced depressive behavior was found in Kyrgyz boys in 2020 (U = 166, Z = -2.120, p = 0.034).

Group differences of situational stress levels in the COVID-19 pandemic in respondents with normal and high levels of anxiety and depression

The stress levels in 4 groups of schoolchildren were assessed using PSS questionnaire (Table 2). The level of situational stress in Russian schoolchildren in 2020 was 25.5 (SD = 6.1), in 2021 it remained mostly on the same level 25.8 (SD = 5.8). In Kyrgyz schoolchildren in 2020 it was 25.88 (SD = 6.06), in 2021 it increased to 27.06 (SD = 6.398), that was significantly higher (U = 25921, Z = - 1.69, p = 0.09). According to the mean values, schoolchildren from both countries had moderate level of situational stress during 2 years of the COVID-19 pandemic. However, cross-cultural analysis showed significantly lower (U = 138231, Z = - 2.83, p = 0.09) negative emotional reactions among Russian schoolchildren (25.9) in 2021 compared to Kyrgyz schoolchildren (27.1).

On the next step in perceived stress levels analysis participants were divided in 8 groups with normal and high anxiety (Table 4) and depression levels (Table 5):

- Russians with normal anxiety level;

- Russians with high anxiety level;

- Kyrgyz with normal anxiety level;

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- Kyrgyz with high anxiety level;

- Russians with normal depression level;

- Russians with high depression level;

- Kyrgyz with normal depression level;

- Kyrgyz with high depression level.

Table 4

Perceived stress levels in schoolchildren with normal and high anxiety levels

Level 0f PSS (total score)

anxiety yruup N Mean SD Min Max

R2020 399 23,48 5,65 10 41

K2020 75 23,89 5,92 13 38

normal

R2021 394 23,52 5,40 10 38

K2021 276 23,86 5,25 10 37

R2020 196 29,63 4,93 10 44

K2020 45 29,18 4,74 19 40

high

R2021 245 29,54 4,42 14 45

K2021 204 31,39 5,15 18 37

Note. R2020 - Russian student in 2020, K2020 - Kyrgyz students in 2020; R2021 - Russian student in 2021, K2021 - Kyrgyz students in 2020; M - mean score, SD - standard deviation, N - number

Table 5

Perceived stress levels in schoolchildren with normal and high depression levels

Level 0f PSS (total score)

depression yiuu|j N Mean SD Min Max

normal R2020 459 24,39 6,05 10 40

K2020 74 24,84 5,81 13 38

R2021 470 24,79 5,59 10 45

K2021 337 25,42 5,98 10 45

high R2020 136 29,28 4,81 14 44

K2020 46 27,54 6,14 13 40

R2021 169 28,72 5,53 10 44

K2021 143 30,92 5,66 16 46

Note. R2020 - Russian student in 2020, K2020 - Kyrgyz students in 2020; R2021 - Russian student in 2021, K2021 - Kyrgyz students in 2020; M - mean score, SD - standard deviation, N - number

To assess if there were statistical differences between high and normal levels of anxiety within 4 groups, we applied pairwise comparisons using the Mann-Whitney test (with p-value=0.05). In all 4 groups we found significant results: in group of Russians in 2020 on anxiety scale (U = 15499.5, Z= -12.016, р<0.0001) and depression scale (U = 16642.5, Z = -8.302, р < 0.0001); in group of Russians in 2021 on anxiety scale (U = 18410.5, Z = -13.184, р < 0.0001) and depression scale (U = 23548.5, Z = -7.870, р<0.0001); in group of Kyrgyz in 2020 on anxiety scale (U = 821, Z = -4.709, р < 0.0001) and depression scale (U = 1244.5, Z = -2.476, p = 0.013); in group of Kyrgyz in 2021 on anxiety scale (U = 8517.5, Z = -13.088, р < 0.0001) and depression scale (U = 12211, Z = -8.563, р < 0.0001). We found statistical differences in 4 groups of schoolchildren with high levels of anxiety (Kruskal-Wallis test, Н = 18.482, df = 3, р < 0.0001), as well as with high levels of depression (H = 15.371, df = 3, р = 0.002).

Afterwards we applied post hoc pairwise Mann-Whitney test (with p-value=0,0085). The cross-cultural analysis of Kyrgyz schoolchildren with high level of anxiety in comparison with Russians showed

significant differences in perceived stress in 2021 (U = 19703, Z = -3.874, p < 0.0001). The perceived stress of Kyrgyz schoolchildren with high level of depression was significantly higher than in Russians in the same year (U = 9630.5, Z = -3.098, p = 0.002). There were significant results in dynamics of actual stress level from 2020 to 2021 in group in Kyrgyz schoolchildren with high level of anxiety (U = 3441, Z = -2,634, p = .008) and with high level of depression (U = 2287.5, Z = -3.112, p = 0.002) as well.

We found the gender differences (with p-value=0.05) in stress scores. The stress level in girls with high and normal levels of anxiety and depression was significantly higher than in boys in all 4 groups in 2021:

- with normal level of anxiety in 2021 (U = 7539, Z = -2.964, p < .003), and with high level of anxiety in 2021 (U = 3361, Z = -2.867, p < .004) in Kyrgyz in 2021;

- with normal level of depression (U = 9652.5, Z = -4.909, p =.000), and with high level of depression (U = 1535, Z = -3.917, p =.000) in Kyrgyz in 2021;

- with normal level of anxiety in 2021 (U = 16824, Z = -2.267, p < .023), and with high level of anxiety in 2021 (U = 5778, Z = -2.133, p < .033) in Russians in 2021;

- with normal level of depression (U = 22940.5, Z = -2.858, p < .004), and with high level of depression (U = 2475.5, Z = -3.334, p < .001) in Russians in 2021.

Discussions

In the present study we analyzed how schoolchildren from different countries reacted to a stressful situation of the COVID-19 pandemic in spring 2020 during the initial stage of the pandemic and transition to distant/online learning, and one year after in spring 2021, when schoolchildren in both countries already had a great experience of online learning and both countries survived some serious stressful accidents of COVID-19. The findings proved that schoolchildren were at high risk regarding the development of stress and adverse psychological symptoms, such as anxiety and depression, during the COVID-19 pandemic.

The analysis of the severity of anxiety and depression symptoms both in Russia and in Kyrgyzstan showed that the mean scores were in the upper range of the normal level, and the level of perceived COVID-19 stress was moderate. When we compared the results in levels of anxiety and depression between two periods of survey in 2020 and 2021, the same tendency was found both in Russia and in Kyrgyzstan: an increase in depressive and anxiety symptoms during the year after the initial period of coronavirus outbreak that could mean a decrease in a well-being of schoolchildren across a broad set of human activities at school, with family, and in social life. All these could lead to severe problems in life satisfaction, which's considered a predictor of mental and physical health and successful adaptation to life (Zhou and Lin, 2016). These findings are in line with previous studies (Lee, Kim and Wachholtz, 2016; Praharso, Tear and Cruwys, 2017; Rogowska, Kusnierz and Bokszczanin, 2020). Therefore, it's supposed that at both periods of survey, the threat of being infected of a coronavirus was not so frightened and didn't cause dissatisfaction in schoolchildren as the restrictions in everyday life caused by it.

Cross-cultural comparison revealed that anxiety and depression levels of Kyrgyz schoolchildren were significantly higher than in Russians. When analyzing the severity levels, we found the percentage of schoolchildren with severe depression and anxiety symptoms were high in Kyrgyzstan as well. However, the number of schoolchildren in Kyrgyzstan, who suffered much from depressive symptoms at the initial stage, decreased in a year after the outbreak of pandemic, that could be the reason of adaptation to online/distant learning. At the initial stage of COVID-19 many negative emotions and distress were caused by the transition to online learning, as well as the deterioration of relations with parents. The crisis in the education system due to COVID-19 caused the lack of personal communication when children and youth could learn and develop important social skills such as self-confidence, friendship, empathy, respect, compassion, responsibility. Normally the school provides a structured environment for positive socialization and harmonious development of students. With distant/online learning, the process of socialization changed, and was distorted (Richards, 2020), despite the opportunities of virtual communication via internet and social networks. The learning process was also negatively influenced by the pandemic, many schoolchildren felt stressed and dissatisfied with online learning that replaced the face-to-face educational process. The main changes in the learning process during the pandemic concerned mostly such characteristics of formal school face-to-face education, as fixed curriculum, uniform teaching methods, and feasibility in personal contact and support from teachers.

The cross-cultural comparison showed that the levels of depression, stress, and anxiety were mostly higher in Kyrgyz schoolchildren than in Russians. The stress level in more than 15% of Kyrgyz respondents in 2020 and around 23% in 2021 was high. Our findings partly proved the hypothesis that

there were cross-cultural differences in perceived stress in Russian and Kyrgyz schoolchildren with high levels of anxiety and depression both in 2020 and 2021. We found out that the level of perceived stress of Kyrgyz schoolchildren with high level of depression as well as with high level of anxiety were significantly higher than in Russian respondents during the second stage of survey in spring 2021. Schoolchildren from Kyrgyzstan not from Russia with high levels of anxiety and depression demonstrated more pronounced perceived stress in 2021 in comparison to the initial stage of the COVID-19 pandemic in 2020. The pandemic had much greater negative impact on Kyrgyz students. One of the possible reasons of it are the differences in cultural traditions. Another possible reason can be the differences in governmental strategies in coping with pandemic, such as total lockdown, quarantine or preventive measures. In case of Russia and Kyrgyzstan comparison, both reasons played sufficient role. People from traditional cultures, such as in Kyrgyzstan, according to the results of large cultural studies, demonstrated more pronounced stress reactions compared (Persike and Seiffge-Krenke, 2012) to people from individualistic cultures (Kim, Sherman and Taylor, 2008), such as Russia.

The events that occurred in Kyrgyzstan since the initial period of pandemic in March 2020 till the June 2021 influenced the emotional reactions to COVID-19. The initial stage of COVID-19 pandemic in Kyrgyzstan was less stressful than in Russia. During the first period of survey in May 2020, despite the lockdown till the middle of May in Kyrgyzstan, the situation was not yet much threatening, many people didn't believe in the existence of the virus and the imminence of coronavirus crisis. Therefore, the results from the first data collection period showed lower level of stress, not pronounced negative emotions such as anxiety and depression. However, the real COVID-19 crisis in Kyrgyzstan happened in July 2020, when the country was on the first places in world's rating list in number of infected and died people. Since the mid of the 2020 and till the spring 2021 the country survived a lot of problems in all spheres of life, that led to a great political crisis with forcible overthrow of the government in Kyrgyzstan. Since April 2021 the situation with pandemic became worse and many people were frightened of a new wave of COVID-19, which occurred in middle of June 2021.

Gender can be considered as an important predictor of negative psychological reactions during the pandemic. The findings from previous studies (Wang G., et al., 2020) suggested that females were more prone to psychological stress than males. With regard to age characteristics, young people aged 16-18 demonstrated the highest level of psychological stress (Qiu, et al., 2020). In our study the analysis in four cohorts of schoolchildren with high levels of anxiety showed the same patterns of negative emotional reactions: girls are more anxious with COVID-19 than boys. The stress level in girls with high and normal levels of anxiety and depression was significantly higher than in boys in all 4 groups in a year after the initial stage of pandemic. Kyrgyz boys demonstrated significantly more pronounced depressive behavior in spring 2020. Young people in general, and females in most are sensitive to various kinds of negative effects and vulnerable to stressful events such as pandemics, due to their personal immatureness and emotional lability.

Conclusions

The COVID-19 pandemic brought significant mental problems that affected the psychological well-being and health of all people, and children and youth in particular. The crisis of pandemic was characterized by uncertainty, vulnerability, unpredicted outcomes, sufficient changes in quality of life which caused anxiety, emotional distress, depression in people. Nowadays we can assess factors and conditions that determine the life within the COVID-19, as well as short-term outcomes for a period of several years since the world wide outbreak of the COVID-19. However, the stressors caused by the pandemic could have delayed and long-term adverse outcomes. This is especially important to study on behalf of the younger generation, since they are the most sensitive and emotionally labile social group, actively responding to changes in their environment. On the other hand, psychological problems of schoolchildren were exacerbated by an additional important stress - a sharp transition to distance/ online learning. Our findings disclosed important aspects of the impact of COVID-19 on schoolchildren, including cross-cultural differences and dynamics in development of stressful reactions, that is crucial as the emerging need of psychological aid and for supporting schoolchildren mental health.

Acknowledgements

The paper is part of the project no. 20-04-60394, funded by RFBR (Russia).

Conflict of interests

The authors declare no conflict of interest.

Availability of data and materials

The datasets generated and analyzed during the current study are not publicly available due to compliance with institutional guidelines but they are available from the corresponding author on a reasonable request.

Informed Consent Statement

Informed consent was obtained from all respondents involved in the study before completing the survey.

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