Table 1 Characteristics of Study Participants. Data are mean (standard deviation) or median [interquartile range]
Characteristic | Success | Not-success |
|---|---|---|
Age | 26.1 (3.5) | 24.9 (3.8) |
Race | ||
White | 0 | 0 |
Black | 8 (88.9%) | 10 (90.9%) |
Hispanic | 1 (11.1%) | 1 (9.1%) |
Body mass index (kg*m2) | 30.6 (7.7) | 29.9 (6.4) |
Parity | ||
Nulliparous | 0 | 0 |
Primiparous | 2 (22.2%) | 5 (45.5%) |
Multiparous | 7 (87.8%) | 6 (54.5%) |
Gestational age (weeks) | 38.1 (2.5) | 38.8 (2.4) |
Cervical dilation (cm) | 4.1 (25–75% Interquartile range 3.5–5) | 4.4 (25–75% Interquartile range 3–5) |
Baseline visual analogue pain score | 7.9 (1.0) | 9.2 (1.0) |
Any baseline nausea, sedation, or pruritis | 0 | 0 |