Table 1.
Search terms based on PEO framework.
| PEO framework | Search terms++ |
|---|---|
| Population | Critical care or ICU nurse or critical care or ICU or intensive care |
| Exposure | COVID-19 or coronavirus or 2019-NCOV or SARS-COV-2 or COV-19 |
| Outcome | Physical health or physical wellbeing or physical illness or physical health problems or physical effect or physical impact* or physical result* or physical outcome* or mental health or psychological wellbeing or psychological illness or psychological health problems or psychological effect or psychological impact* or psychological result* or psychological outcome* |

Figure 1.
PRISMA flow diagram of study selection. COVID-19, coronavirus disease; PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses.

Figure 2.
The effects of COVID-19 on critical care nurses. COVID-19, coronavirus disease.

Figure 3.
Maslow’s hierarchy of needs.

Figure 4.
The effects of COVID-19 inducing relevant factors on the psychological and physical health’s critical care nurses. COVID-19, coronavirus disease; PPE, personal protective equipment.