Patient demographics
| 25 Gauge (n=67) | 27 Gauge (n=68) | |
| Age (years) | 26.4 (5.9) | 27.2 (5.8) |
| Height (cm) | 158.8 (4.7) | 159.9 (6.2) |
| Weight (kg) | 74.4 (9.0) | 75.3 (11.1) |
| BMI (kg/m2) | 29.5 (3.4) | 29.4 (3.6) |
| Nulliparous | 45 (67.2) | 46 (67.6) |
| Gestational age (weeks) | 39.4 (1.2) | 39.6 (1.2) |
| Cervical dilation at time of epidural insertion (cm) | 3.7 (0.5) | 3.6 (0.6) |
| Labor induction | 24 (35.8) | 25 (36.8) |
| Oxytocin use | 30 (44.8) | 27 (39.7) |
| Prostaglandin use | 13 (19.4) | 17(25) |
| Pain at time of epidural insertion (NRS) | 8[4-10] | 8[4-10] |
Continuous variables (ie, age, height, weight, BMI and cervical dilation) are presented as mean (SD), ordinal variables (ie, pain) are presented as median [range] while other variables are presented as count (%).
BMI, body mass index; NRS, numeric rating scale.