TABLE 1.
Baseline Characteristics of the Intervention and Control Groups
| Intervention, n = 135 | Control, n = 136 | |
|---|---|---|
| Birth weight, kg, mean ± SD. | 3.18 ± 0.39 | 3.13 ± 0.43 |
| ≤2.50, n (%)a | 3 (2) | 11 (8) |
| 2.51–3.00, n (%) | 48 (36) | 45 (33) |
| 3.01–3.50, n (%) | 64 (47) | 59 (43) |
| 3.51–4.00, n (%) | 15 (11) | 18 (13) |
| >4.00, n (%) | 5 (4) | 3 (2) |
| Gestational age, wk, mean ± SDb | 39.0 ± 1.4 | 39.0 ± 1.9 |
| <37, n (%) | 1 (1) | 2 (1) |
| 37–38, n (%) | 54 (40) | 54 (40) |
| 39–40, n (%) | 65 (48) | 56 (41) |
| 41–42, n (%) | 13 (10) | 19 (14) |
| >42, n (%) | 2 (1) | 4 (3) |
| Male gender, n (%) | 71 (53) | 68 (50) |
| NICU admission, n (%) | 0 (0) | 1 (1) |
| Room temperature at 15 min, °C, mean ± SDb,c | 27.4 ± 1.5 | 27.8 ± 1.5 |
| Body temperature at 15 min, °C, mean ± SDb | 36.2 ± 0.7 | 36.3 ± 0.7 |
| Hypothermia (<36.5°C) at 15 min, n (%)b | 84 (63) | 81 (60) |
| Body temperature <36°C at 15 min, n (%)b | 44 (33) | 40 (30) |
a
P = .051.
b
May reflect as many as 5 missing values.
c
P = .023.