Workplace factors associated with mental health of healthcare workers during the COVID-19 pandemic: an international cross-sectional study

BACKGROUND: The association of workplace factors on mental health of healthcare workers (HCWs) during the COVID-19 pandemic needs to be urgently established. This will enable governments and policy-makers to make evidence-based decisions. This international study reports the association between workplace factors and the mental health of HCWs during the pandemic. METHODS: An international, cross-sectional study was conducted in 41 countries. The primary outcome was depressive symptoms, derived from the validated Patient Health Questionnaire-2 (PHQ-2). Multivariable logistic regression identified factors associated with mental health outcomes. Inter-country differences were also evaluated. RESULTS: A total of 2,527 responses were received, from 41 countries, including China (n=1,213; 48.0%), UK (n=891; 35.3%), and USA (n=252; 10.0%). Of all participants, 1343 (57.1%) were aged 26 to 40 years, and 2021 (80.0%) were female; 874 (34.6%) were doctors, and 1367 (54.1%) were nurses. Factors associated with an increased likelihood of depressive symptoms were: working in the UK (OR=3.63; CI=[2.90-4.54]; p<0.001) and USA (OR=4.10; CI=[3.03-5.54]), p<0.001); being female (OR=1.74; CI=[1.42-2.13]; p<0.001); being a nurse (OR=1.64; CI=[1.34-2.01]; p<0.001); and caring for a COVID-19 positive patient who subsequently died (OR=1.20; CI=[1.01-1.43]; p=0.040). Workplace factors associated with depressive symptoms were: redeployment to Intensive Care Unit (ICU) (OR=1.67; CI=[1.14-2.46]; p=0.009); redeployment with perceived unsatisfactory training (OR=1.67; CI=[1.32-2.11]; p<0.001); not being issued with appropriate personal protective equipment (PPE) (OR=2.49; CI=[2.03-3.04]; p<0.001); perceived poor workplace support within area/specialty (OR=2.49; CI=[2.03-3.04]; p<0.001); and perceived poor mental health support (OR=1.63; CI=[1.38-1.92]; p