| Psychological condition | Factors associated with higher risk |
| Depression and anxiety | Individual/interpersonal factors (i) Female gender [14, 18, 29, 32, 34] (ii) Young age [18, 20, 29, 30, 34] (iii) Attention to negative information about the pandemic [13] (iv) Poor coping mechanisms [22] (v) Having experienced a previous pandemic [28] (vi) Lower level of education [22] (vii) Insufficient knowledge of COVID-19 [29] Institutional factors (i) Frontline work [12–14, 16, 18, 20, 28–30, 32, 35] (ii) Nonfrontline work [27] (iii) Loss of a patient due to COVID-19 [34] (iv) Loss of a close person from COVID-19 [20] (v) Higher workload [25] (vi) Less work experience [18] (vii) Lack of PPE or resources in the workplace [20, 26, 29] (viii) Administrative or paramedical work [20, 22] (ix) Working as a nurse [13, 16, 30, 32] Community factors (i) High media exposure [23] (ii) High-income countries [29] (iii) Lack of social support [33] |
| Posttraumatic stress disorder | Individual/interpersonal factors (i) Female gender [21, 23, 30, 32] (ii) Young age [30, 34] (iii) Passive coping strategies [21] (iv) Anxiety about being infection [24] Institutional factors (i) Frontline work [12, 21, 32] (ii) Loss of a patient due to COVID-19 [24, 34] (iii) Higher workload [25] (iv) Lower team cohesion [23] (v) Working as a nurse [21] Community factors (i) High media exposure [23] (ii) Social stigmatization [23, 33] |
| Burnout | Individual/interpersonal factors (i) Young age [30, 31] (ii) Higher alcohol intake [19] (iii) Unwillingness to participate in frontline work [33] (iv) Attention to negative information about the pandemic [13] Institutional factors (i) Frontline work [12, 13, 19, 30–32] (ii) Higher workload [30, 31] (iii) Less work experience [31] (iv) Lack of PPE or resources in the workplace [19, 26] (v) Conflicts in the workplace [31] |
| Insomnia | Individual/interpersonal factors (i) Female gender [14, 15, 32] (ii) Education level of high school or less [17] (iii) Attention to negative information about the pandemic [13] Institutional factors (i) Frontline work [13, 14, 32, 35] (ii) Nonphysician healthcare workers [15] (iii) Physicians [17] (iv) Higher workload [25] (v) Uncertainty about disease control [17] |
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