Table 1. Comparison of background variables between pregnant women receiving acetaminophen and pethidine.
| Variables | Acetaminophen group (n = 67) |
Pethidine group (n = 67) |
p-value |
|---|---|---|---|
| Age, year* | 26.4 ± 5.6 | 25.2 ± 5.5 | 0.221 |
| Gravidity** | 0.008 | ||
| 1 | 25 (37.3) | 44 (65.7) | |
| 2 | 18 (26.9) | 12 (17.9) | |
| 3 | 20 (29.9) | 7 (10.4) | |
| 4 | 4 (6.0) | 4 (6.0) | |
| Parity** | 0.010 | ||
| 1 | 27 (40.3) | 45 (67.2) | |
| 2 | 22 (32.8) | 15 (22.4) | |
| 3 | 15 (22.4) | 6 (9.0) | |
| 4 | 3 (4.5) | 1 (1.5) | |
| Parity** | 0.002 | ||
| Primiparous | 27 (40.3) | 45 (67.2) | |
| Multiparous | 40 (59.7) | 22 (32.8) | |
| Type of delivery** | |||
| Vaginal | 60 (89.6) | 55 (82.1) | |
| Vacuum | 2 (3.0) | 6 (9.0) | 0.315 |
| Cesarean section | 5 (7.5) | 6 (9.0) | |
| Blood pressure before the intervention, mmHg* | 10.8 ± 0.8 | 11.0 ± 0.8 | 0.189 |
| Dilatation before the intervention, cm* | 5.0 ± 0.9 | 4.9 ± 0.9 | 0.581 |
| Time interval between intervention and delivery, minutes* | 170.4 ± 106.4 | 163.7 ± 97.5 | 0.703 |
*Mean±standard deviation.
**Frequency (%).