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. 2022 Feb 10;19(4):1947. doi: 10.3390/ijerph19041947

Table 3.

Binary logistic regression analysis for ≥10 sick leave days as dependent variable.

Independent Variable Nagelkerkes R2 = 20.0%; Hosmer-Lemeshow test: χ2 = 5.508; df = 8; p = 0.702; 2-Log-Likelihood = 792.672
Regression Coefficient Standard Error Wald df p-Value OR (95% CI: Minimum–Maximum)
Sociodemographic variables
Gender (Ref. = men)
    Women 0.119 0.223 0.284 1 0.594 1.126 (0.727–1.743)
Age (Ref. = 18–30 years)
    31–40 0.374 0.330 1.291 1 0.256 1.454 (0.762–2.774)
    41–50 0.459 0.365 1.578 1 0.209 1.582 (0.773–3.237)
    >50 0.449 0.350 1.644 1 0.200 1.566 (0.789–3.109)
Living alone (Ref. = No)
    Yes −0.017 0.223 0.006 1 0.940 0.983 (0.636–1.521)
Children (Ref. = No)
    Yes 0.046 0.219 0.045 1 0.832 1.047 (0.682–1.609)
Migration background (Ref. = No)
    Yes −0.009 0.265 0.001 1 0.974 0.991 (0.590–1.665)
Caring for old, ill or disabled relatives (Ref. = No)
    Yes 0.071 0.238 0.088 1 0.766 1.073 (0.673–1.710)
Job—related variables
Professional experience in patient care (Ref. = <3 years)
    3–6 −0.396 0.476 0.692 1 0.405 0.673 (0.265–1.710)
    >6 −0.322 0.481 0.448 1 0.503 0.725 (0.282–1.861)
Employment (Ref. = Full-time)
    Part-time −0.345 0.194 3.148 1 0.076 0.709 (0.484–1.037)
COVID-19—related variables
Infection with SARS-CoV-2 (Ref. = No)
    Yes 1.929 0.286 45.520 1 <0.001 6.883 (3.930–12.055)
    I don’t know 0.402 0.279 2.072 1 0.150 1.495 (0.865–2.583)
Contact with infected patients (Ref. = No)
    Yes −0.453 0.197 5.286 1 0.021 0.635 (0.432–0.935)
Risk group due to pre-existing illness (Ref. = No)
    Yes 0.623 0.226 7.610 1 0.006 1.864 (1.198–2.903)
Occupancy rate (Ref. = strongly/slightly below average, average)
    Slightly/strongly above average −0.271 0.206 1.727 1 0.189 0.763 (0.510–1.142)
Change of the department (Ref. = No)
    Yes −0.033 0.287 0.013 1 0.909 0.968 (0.551–1.699)
Symptoms
PHQ-2 * −0.004 0.083 0.002 1 0.962 0.996 (0.846–1.173)
GAD-2 * 0.060 0.075 0.645 1 0.422 1.062 (0.917–1.231)
Sleeping disorders # −0.103 0.082 1.580 1 0.209 0.902 (0.768–1.059)
Exhaustion # 0.272 0.109 6.273 1 0.012 1.313 (1.061–1.624)
Fear to become infected # 0.177 0.077 5.245 1 0.022 1.194 (1.026–1.389)
Work—related variables
ERI effort + −0.099 0.058 2.903 1 0.088 0.906 (0.809–1.015)
ERI reward + −0.088 0.033 7.340 1 0.007 0.915 (0.859–0.976)
Trust in colleagues # 0.187 0.094 3.911 1 0.048 1.205 (1.002–1.451)
Higher workload # −0.023 0.076 0.095 1 0.758 0.977 (0.842–1.134)
Sufficient staff # −0.201 0.097 4.321 1 0.038 0.818 (0.676–0.989)
Measures of the hospital # 0.030 0.091 0.113 1 0.737 1.031 (0.863–1.232)
    Constant 0.356 0.944 0.142 1 0.706 1.428

N = 714. OR = odds ratio; CI = confidence interval; PHQ-2 = Patient Health Questionnaire-2; GAD-2 = Generalized Anxiety Disorder-2; ERI = effort-reward imbalance questionnaire; * Scale: 0 = never, 1 = on single days, 2 = on more than half of the days, 3 = almost every day; # Scale: 0 = strongly disagree, 1 = rather disagree, 2 = neither agree or disagree, 3 = rather agree, 4 = strongly agree; + Scale: 1 = strongly disagree, 2 = disagree, 3 = agree, 4 = strongly agree; significant p-values and corresponding ORs/CIs are marked bold.