Table 2.
|
|
|
Heterogeneity |
|
---|---|---|---|---|
Subgroup | No. of studies | Pooled rate (95% CI) | I2 (%) | P value |
Region | ||||
United States | 9 | 0.66 (.54–.77) | 96.3 | <.001 |
China | 5 | 0.77 (.72–.82) | 96.9 | <.001 |
Italy | 3 | 0.85 (.80–.90) | 87.7 | <.001 |
Time of survey | ||||
2020 | 15 | 0.72 (.64–.80) | 98.2 | <.001 |
2021 | 16 | 0.70 (.66–.74) | 97.7 | <.001 |
Population | ||||
Non-medical student | 19 | 0.72 (.66–.78) | 99.3 | <.001 |
Medical student | 16 | 0.66 (.57–.75) | 99.6 | <.001 |
Medical student | ||||
Medical student | 11 | 0.74 (.67–.81) | 97.1 | <.001 |
Nursing student | 4 | 0.60 (.35–.85) | 99.0 | <.001 |
Dental student | 3 | 0.60 (.54–.67) | 45.7 | 0.159 |