Table 3.
Fetal heart rate patterns observed within 30 min after injection meperidine and placebo
| Characteristics | Mepridin (n = 75) | Control (n = 75) | p value |
|---|---|---|---|
| Variabilitya | |||
| Absent | 5 (6.7) | 2 (2.7) | 0.00 |
| ≤5 BPM | 10 (13.3) | 2 (2.7) | 0.00 |
| 6-25 BPM | 51 (68) | 19 (25.3) | 0.00 |
| >25 BPM | 9 (12) | 52 (69.3) | 0.00 |
| Accelerationsa | 40 (53.3) | 62 (82.7) | 0.00 |
| Decelerationsa | |||
| None | 38 (50.7) | 58 (77.3) | 0.01 |
| Early | 24 (32) | 11 (14.7) | 0.01 |
| Late | 10 (13.3) | 4 (5.4) | 0.00 |
| Prolonged | 2 (2.7) | 1 (1.3) | 0.04 |
| Variable | 1 (1.3) | 1 (1.3) | 0.8 |
a
Number (%).