Table 4.
Young Adults (Referent) | Younger Adolescents | Adjusted OR (95%CI)a | Older Adolescents | Adjusted OR (95%CI)a | |
---|---|---|---|---|---|
Age 20–24.9 | Age ≤ 15.9 | Age 16–19.9 | |||
n (%) | n (%) | n (%) | |||
Failure to progress or cephalopelvic disproportion | 3,210 (49.02) | 67 (37.64) | 0.73 (0.53, 1.01) | 1,342 (44.04) | 0.89 (0.81, 0.98) |
Malpresentation | 1,480 (22.60) | 39 (21.91) | 1.13 (0.78, 1.65) | 653 (21.43) | 1.06 (0.94, 1.18) |
Nonreassuring fetal heart tracing | 1,721 (26.28) | 64 (35.96) | 1.24 (0.90, 1.71) | 915 (30.03) | 1.04 (0.94, 1.15) |
Elective | 365 (5.57) | 16 (8.99) | 1.42 (0.82, 2.46) | 169 (5.55) | 0.883(0.722, 1.079) |
Hypertensive disease | 187 (2.86) | 6 (3.37) | 1.25 (0.51, 3.07) | 108 (3.54) | 1.34 (1.02, 1.77) |
Macrosomia | 136 (2.08) | 0 (0) | -- | 46 (1.51) | 0.82 (0.58, 1.18) |
Fetal indication or anomaly | 83 (1.27) | 3 (1.69) | 1.53 (0.47, 4.98) | 40 (1.31) | 1.13 (0.76, 1.70) |
Failed induction | 165 (2.52) | 3 (1.69) | 0.59 (0.19, 1.90) | 71 (2.33) | 0.79 (0.59, 1.06) |
Placenta previa or vasa previa | 31 (0.47) | 0 (0) | -- | 5 (0.16) | 0.30 (0.11, 0.80) |
Chorioamnionitis | 85 (1.30) | 0 (0) | -- | 37 (1.21) | 0.77 (0.52, 1.15) |
HIVb, active herpes simplex virus lesions | 56 (0.86) | 3 (1.69) | 1.13 (0.35, 3.71) | 45 (1.48) | 1.17 (0.78, 1.75) |
Placental abruption | 32 (0.49) | 2 (1.12) | 1.16 (0.25, 5.28) | 27 (0.89) | 1.36 (0.77, 2.41) |
Failed trial of forceps or vacuum | 22 (0.34) | 0 (0) | -- | 14 (0.46) | 1.58 (0.76, 3.27) |
Because more than one indication could have been listed, indications may add up to more than 100%.
Adjusted for maternal race/ethnicity, marital status, insurance type, substance abuse, BMI at admission, hospital type, gestational age at delivery, and any diabetes.
Human immunodeficiency virus (HIV)
Vaginal birth after cesarean delivery