Table 4.
General and obstetric characteristics and intrapartum care of women of the retrospective OP subcohort according to the position of fetal head at the second stage of labor
| Characteristics | POPP at stage II (N=154) | No POPP at stage II (N=276) | p | ||
|---|---|---|---|---|---|
| n | % | n | % | ||
| General | |||||
| Maternal age ≥35 years | 67 | 43.5 | 93 | 33.7 | 0.044 |
| BMI >30 | 29 | 18.8 | 40 | 14.5 | 0.240 |
| Ethnicity (Caucasian) | 128 | 83.1 | 245 | 88.8 | 0.098 |
| Obstetric | |||||
| Nulliparous | 87 | 56.5 | 184 | 66.7 | 0.036 |
| Previous CS | 8 | 5.2 | 29 | 10.5 | 0.065 |
| Uncomplicated pregnancy | 127 | 82.5 | 220 | 79.7 | 0.487 |
| Gestational age (late/post-term) | 43 | 27.9 | 84 | 30.4 | 0.584 |
| PROM | 66 | 44.2 | 117 | 42.4 | 0.723 |
| Spontaneous onset of labor | 111 | 72.1 | 197 | 71.4 | 0.877 |
| Epidural analgesia | 56 | 36.4 | 108 | 39.1 | 0.571 |
| OX in labor | 20 | 13.0 | 30 | 10.9 | 0.511 |
POPP: persistent occiput posterior position. BMI: body mass index (kg/m2). CS: cesarean section. PROM: premature rupture of membranes. OX: oxytocin.
Uncomplicated pregnancy is defined as a pregnancy in a woman with no chronic conditions or gestational complications. Late/post-term pregnancy is defined as a gestational age between 41 0/7 weeks and 42 0/7 weeks of gestation.