Table 2.
Subgroup analysis on COVID-19-induced ARDS
| Subgroups | Criteria | Number of studies | Prevalence | Heterogeneity statistics | p value | I2 | Tau squared |
|---|---|---|---|---|---|---|---|
| Study design | Cros-sectional | 8 | 30.91 (20.27–41.54) | 254.57 | P < 0.001 | 97.3% | 223.5 |
| Cohort | 3 | 35.54 (15.32–55.77) | 54.57 | P < 0.001 | 96.3% | 306.5 | |
| Publication year | ≥ 2021 | 5 | 27.75 (13.75–41.75) | 194.54 | P < 0.001 | 97.9% | 243.3 |
| < 2021 | 6 | 36.17 (21.68–50.65) | 141.76 | P < 0.001 | 96.5% | 311.5 | |
| Region of the study | Africa | 5 | 27.75 (13.75–41.75) | 194.54 | P < 0.001 | 97.9 | 247.3 |
| Asia | 4 | 34.28 (13.86–54.69) | 79.27 | P < 0.001 | 96.2 | 413.5 | |
| USA | 2 | 40.20 (8.16–72.25) | 60.83 | P < 0.001 | 98.4 | 525.9 | |
| Income status | HICs | 5 | 40.39 (24.04–56.73) | 129.31 | P < 0.001 | 96.9 | 331.9 |
| LMICs | 6 | 25.7 (13.35–38.05) | 196.32 | P < 0.001 | 97.5 | 228.6 |
HICs High-income Countries, LMICs Low-income countries, USA United States of America