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. 2021 Jul 29;16(7):e0255050. doi: 10.1371/journal.pone.0255050

Table 5. Associations between the psychological impact of the COVID-19 crisis and socioeconomic status, highest level of education, unemployment before the crisis and working in contact with potentially infected people; adjusted for experiences of COVID-19 symptoms and work situation during the COVID-19 crisis.

Psychological impact of the COVID-19 crisis
  Psychological distress during COVID-19 without mentioning it as a cause Measured during COVID-19 and adjusted for pre-COVID-19 levels, age, linguistic region and participants’ experiences of the crisis a) Psychological distress due to COVID-19, mentioning it as a cause Measured during COVID-19 only and adjusted for age, linguistic region and participants’ experiences of the crisis a)
  Depression b [95%CI] Perceived stress b [95%CI] Sleep Quality b [95%CI] Psychological trauma b [95%CI] Fear b [95%CI] Isolation b [95%CI]
Socioeconomic status before the crisis
    Relative financial status (ref: average; n = 684)
        below average (n = 737) 0.12 [0.03, 0.22] 0.15 [0.05, 0.25] -0.01 [-0.11, 0.08] 0.15 [0.04, 0.26] 0.20 [0.10, 0.30] 0.19 [0.08, 0.29]
        above average (n = 924) 0.10 [0.00, 0.19] 0.00 [-0.09, 0.09] 0.02 [-0.07, 0.12] -0.03 [-0.13, 0.07] -0.07 [-0.17, 0.02] 0.08 [-0.02, 0.18]
    Difficulty paying usual bills (ref: easy or very easy; n = 971)
        fairly easy (n = 762) 0.00 [-0.09, 0.08] 0.01 [-0.08, 0.09] -0.05 [-0.14, 0.04] 0.11 [0.02, 0.21] 0.14 [0.05, 0.23] 0.04 [-0.05, 0.14]
        rather difficult or difficult (n = 612) 0.01 [-0.09, 0.11] 0.13 [0.03, 0.23] -0.10 [-0.20, 0.00] 0.36 [0.26, 0.47] 0.35 [0.25, 0.45] 0.21 [0.11, 0.31]
Highest level of education (ref: apprenticeship (12–13 years; n = 944))        
        compulsory schooling (9 years; n = 41) -0.12 [-0.41, 0.17] 0.04 [-0.25, 0.32] 0.05 [-0.24, 0.34] -0.01 [-0.33, 0.31] -0.01 [-0.31, 0.29] -0.15 [-0.46, 0.16]
        secondary school (12–13 years; n = 221) 0.18 [0.04, 0.31] 0.08 [-0.05, 0.21] -0.14 [-0.28, 0.00] 0.09 [-0.06, 0.24] 0.00 [-0.14, 0.14] 0.21 [0.06, 0.35]
        bachelor’s degree (15 years; n = 612) 0.09 [0.00, 0.19] -0.03 [-0.13, 0.07] -0.05 [-0.15, 0.05] -0.10 [-0.20, 0.01] 0.09 [-0.01, 0.19] 0.10 [-0.01, 0.20]
        master’s degree (17 years; n = 527) 0.21 [0.11, 0.32] 0.11 [0.01, 0.22] -0.07 [-0.18, 0.04] -0.01 [-0.12, 0.11] 0.04 [-0.07, 0.16] 0.19 [0.08, 0.31]
Unemployment before the crisis (ref: no = 2300)
        yes (n = 45) 0.13 [-0.15, 0.40] 0.08 [-0.20, 0.35] 0.13 [-0.15, 0.41] 0.40 [0.09, 0.71] 0.11 [-0.19, 0.40] 0.43 [0.13, 0.73]
Working in contact with potentially infected people
    Job in healthcare sector in contact with patients (ref: no; n = 1963)
        yes (n = 107) 0.01 [-0.16, 0.19] -0.04 [-0.22, 0.14] -0.01 [-0.20, 0.17] -0.12 [-0.32, 0.08] -0.21 [-0.40, -0.02] 0.00 [-0.19, 0.20]
    Other job in contact with people (e.g. restaurant) (ref: no; n = 1534)
        yes (n = 538) -0.06 [-0.15, 0.03] -0.06 [-0.15, 0.03] 0.02 [-0.07, 0.12] 0.02 [-0.08, 0.12] 0.03 [-0.07, 0.12] 0.03 [-0.07, 0.13]

Note: Outcomes were z-standardized, and b represents differences in standard deviations with respect to the reference group. 95%CI = 95% confidence interval of b.

a) participants’ experiences of the crisis was measured in form of experience of COVID-19 symptoms, COVID-19 symptoms in entourage, changes in employment status, change in workload, call up military or civil protection unit, percentage of work at home. Coefficients in bold are significant at the p < .05 level.