Table 2 Patient characteristics in included studies
Group | No. of patients | PaCO2 (mmHg) | Birth weight, mean ± SD or Median (25th–75th percentile), g | Gestational age, mean ± SD or Median (25th–75th percentile) weeks |
|---|---|---|---|---|
Mariani et al. (1999) | ||||
PHC | 24 | 45–55 | 852 ± 156 | 26 ± 1.0 |
Control | 25 | 35–45 | 856 ± 173 | 26 ± 2.0 |
Carlo et al. (2002) | ||||
PHC | 109 | >52 | 742 ± 130 | 25 ± 2.0 |
Control | 111 | <48 | 728 ± 135 | 25 ± 2.0 |
Thome et al. (2006) | ||||
PHC | 33 | 55–65 | 660 (353–944) | 24.7 (23.0–28.9) |
Control | 32 | 35–45 | 621 (432–1204) | 24.7 (23.0–28.3) |
Thome et al. (2015) | ||||
PHC | 179 | 55–65 | 713 ± 156 | 25.6 ± 1.4 |
Control | 180 | 40–50 | 709 ± 153 | 25.7 ± 1.3 |