Table 1 Demographic and clinical characteristics of study populations
Character | Phases | p | |
|---|---|---|---|
I | II | ||
Number of ventilated neonates | 62 | 81 | |
Gender (male) | |||
Number | 43 | 52 | |
% | 69.3 | 64.1 | 0.52 |
Gestation age (week) | |||
< 37 Number (%) | 45 (72.5) | 66 (81.5) | 0.21 |
- 30-37 | 20 (32.2) | 34 (41.9) | |
- <30 | 25 (40.3) | 32 (39.6) | |
> 37 Number (%) | 17 (27.5) | 15 (18.5) | |
Mean ± SD | 32.18 ± 4.5 | 31.73 ± 4.3 | 0.57 |
Birth weight (g) | |||
≤ 2500 Number (%) | 48 (77.4) | 63 (77.7) | 0.99 |
- < 1500 | 28 (45) | 43 (53) | |
> 2500 Number (%) | 14 (22.6) | 18 (22.3) | |
Mean ± SD | 1898 ± 954 | 1803 ± 1074 | 0.59 |
Mode of delivery (% C/S) | 32.2 | 43.2 | 0.18 |
Days of mech. ventilation | |||
Min | 5 | 5 | |
Max | 51 | 35 | |
Mean ± SD | 21.50 ± 7.6 | 10.36 ± 5.2 | 0.000 |
Length of NICU (day) | |||
Min | 7 | 10 | |
Max | 63 | 45 | |
Mean ± SD | 23.87 ± 10.3 | 22.8 ± 9.7 | 0.56 |
Mortality Number (%) | 16 (25.8) | 14 (17.3) | 0.22 |