| Ritodrine (n = 101) | Mg sulphate (n = 101) | Nifedipine (n = 101) | P-value1 | P-value2 | P-value3 | ||
Preterm delivery before full steroid dose: |
|
|
|
|
|
| ||
Yes | 36 (35.6%) | 30 (29.7%) | 30 (29.7%) | 0.368 | 0.368 | 1.000 | ||
No | 65 (64.4%) | 71 (70.3%) | 71 (70.3%) | |||||
Delivery within 7 days: |
|
|
|
|
|
| ||
Yes | 16 (15.8%) | 17 (16.8%) | 6 (5.9%) | 0.849 | 0.024* | 0.015* | ||
No | 85 (84.2%) | 84 (83.2%) | 95 (94.1%) | |||||
Gestational age at birth: (weeks) |
|
|
|
|
|
| ||
Mean ± SD | 32.91 ± 2.36 | 33.31 ± 2.30 | 33.75 ± 2.70 | 0.175 | 0.001* | 0.072 | ||
Range | 25.0-38.0 | 27.0-37.0 | 24.0-39.0 | |||||
Birth weight: |
|
|
|
|
|
| ||
Mean ± SD | 1963.1 ± 467.3 | 2109.9 ± 495.6 | 2097.3 ± 471.0 | 0.034* | 0.071 | 0.790 | ||
Range | 700-2800 | 950-3100 | 850-3000 | |||||
Prolongation of pregnancy: |
|
|
|
|
|
| ||
Yes | 49 (48.5%) | 54 (53.4%) | 65 (64.3%) | 0.398 | 0.010* | 0.084 | ||
No | 52 (51.5%) | 47 (46.6%) | 36 (35.7%) | |||||
Adverse neonatal outcome: |
|
|
| |||||
No | 79 (78.2%) | 80 (79.2%) | 85 (84.2%) | 0.864 | 0.280 | 0.363 | ||