Table 2.
Baseline characteristics of included studies.
| Variable | Finding (95% Confidence Range) | Number of Papers (Patients) Included | Cochrane’s Q Test | I2 Test of Heterogeneity | p-Value for Comparison | |
|---|---|---|---|---|---|---|
| Baseline Characteristics | ||||||
| Age (years) | 48.9 (46.3–51.5) | 53 (3786) | 2128 | 98% | n/a | |
| Gender (% male) | 68.4% (IQR 61.1–75.2) | 50 (3624) | n/a | n/a | n/a | |
| Modality (patients) | Venovenous | 1177 | 54 (3808) | n/a | ||
| Venoarterial and combined | 2508 | |||||
| Not specified | 123 | |||||
| ECMO duration (days) | All patients | 8.2 (7.0–9.4) | 49 (3328) | 1781 | 97% | n/a |
| Venoarterial patients only | 5.6 (4.4–6.8) | 20 (1895) | 557 | 97% | <0.001 | |
| Venovenous patients only | 14.6 (10.6–18.6) | 9 (309) | 63 | 87% | ||