Abstract
Objective. To identify maternal and fetal risk factors associated with persistent occiput posterior position at delivery, and to examine the association of occiput posterior position with subsequent obstetric outcomes. Methods. This is a retrospective cohort study of 30 839 term, cephalic, singleton births. Women with persistent occiput posterior (OP) position at delivery were compared to those with occiput anterior (OA) position. Demographics, obstetric history, and labor management were evaluated and subsequent obstetric outcomes examined. Potential confounding variables were controlled for using multivariate logistic regression analysis. Results. The overall frequency of OP position was 8.3% in the study population. When compared to Caucasians, a higher rate of OP was observed among African-Americans (OR=1.4, 95% CI 1.25-1.64) while no other racial/ethnic differences were noted. Other associated factors included nulliparity, maternal age ≥35, gestational age ≥41 weeks, and birth weight >4000g, as well as artificial rupture of the membranes (AROM) and epidural anesthesia (p <0.001 for all). Persistent OP was associated with increased rates of operative vaginal (OR=4.14, 95% CI 3.57-4.81) and cesarean deliveries (OR=13.45, 95% CI 11.94-15.15) and other peripartum complications including third or fourth degree perineal lacerations (OR=2.38, 95% CI 2.03-2.79), and chorioamnionitis (OR=2.10, 95% CI 1.81-2.44). Conclusion. Epidural use, AROM, African-American ethnicity, nulliparity, and birth weight >4000g are associated with persistent OP position at delivery, with higher rates of operative deliveries and obstetric complications. This information can be useful in counseling patients regarding risks and associated outcomes of persistent OP position.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 563-568 |
| Number of pages | 6 |
| Journal | Journal of Maternal-Fetal and Neonatal Medicine |
| Volume | 19 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 1 2006 |
| Externally published | Yes |
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Keywords
- Maternal outcome
- Persistent OP position
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
- Obstetrics and Gynecology
Cite this
Associated factors and outcomes of persistent occiput posterior position : A retrospective cohort study from 1976 to 2001. / Cheng, Yvonne W.; Shaffer, Brian; Caughey, Aaron.
In: Journal of Maternal-Fetal and Neonatal Medicine, Vol. 19, No. 9, 01.09.2006, p. 563-568.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Associated factors and outcomes of persistent occiput posterior position
T2 - A retrospective cohort study from 1976 to 2001
AU - Cheng, Yvonne W.
AU - Shaffer, Brian
AU - Caughey, Aaron
PY - 2006/9/1
Y1 - 2006/9/1
N2 - Objective. To identify maternal and fetal risk factors associated with persistent occiput posterior position at delivery, and to examine the association of occiput posterior position with subsequent obstetric outcomes. Methods. This is a retrospective cohort study of 30 839 term, cephalic, singleton births. Women with persistent occiput posterior (OP) position at delivery were compared to those with occiput anterior (OA) position. Demographics, obstetric history, and labor management were evaluated and subsequent obstetric outcomes examined. Potential confounding variables were controlled for using multivariate logistic regression analysis. Results. The overall frequency of OP position was 8.3% in the study population. When compared to Caucasians, a higher rate of OP was observed among African-Americans (OR=1.4, 95% CI 1.25-1.64) while no other racial/ethnic differences were noted. Other associated factors included nulliparity, maternal age ≥35, gestational age ≥41 weeks, and birth weight >4000g, as well as artificial rupture of the membranes (AROM) and epidural anesthesia (p <0.001 for all). Persistent OP was associated with increased rates of operative vaginal (OR=4.14, 95% CI 3.57-4.81) and cesarean deliveries (OR=13.45, 95% CI 11.94-15.15) and other peripartum complications including third or fourth degree perineal lacerations (OR=2.38, 95% CI 2.03-2.79), and chorioamnionitis (OR=2.10, 95% CI 1.81-2.44). Conclusion. Epidural use, AROM, African-American ethnicity, nulliparity, and birth weight >4000g are associated with persistent OP position at delivery, with higher rates of operative deliveries and obstetric complications. This information can be useful in counseling patients regarding risks and associated outcomes of persistent OP position.
AB - Objective. To identify maternal and fetal risk factors associated with persistent occiput posterior position at delivery, and to examine the association of occiput posterior position with subsequent obstetric outcomes. Methods. This is a retrospective cohort study of 30 839 term, cephalic, singleton births. Women with persistent occiput posterior (OP) position at delivery were compared to those with occiput anterior (OA) position. Demographics, obstetric history, and labor management were evaluated and subsequent obstetric outcomes examined. Potential confounding variables were controlled for using multivariate logistic regression analysis. Results. The overall frequency of OP position was 8.3% in the study population. When compared to Caucasians, a higher rate of OP was observed among African-Americans (OR=1.4, 95% CI 1.25-1.64) while no other racial/ethnic differences were noted. Other associated factors included nulliparity, maternal age ≥35, gestational age ≥41 weeks, and birth weight >4000g, as well as artificial rupture of the membranes (AROM) and epidural anesthesia (p <0.001 for all). Persistent OP was associated with increased rates of operative vaginal (OR=4.14, 95% CI 3.57-4.81) and cesarean deliveries (OR=13.45, 95% CI 11.94-15.15) and other peripartum complications including third or fourth degree perineal lacerations (OR=2.38, 95% CI 2.03-2.79), and chorioamnionitis (OR=2.10, 95% CI 1.81-2.44). Conclusion. Epidural use, AROM, African-American ethnicity, nulliparity, and birth weight >4000g are associated with persistent OP position at delivery, with higher rates of operative deliveries and obstetric complications. This information can be useful in counseling patients regarding risks and associated outcomes of persistent OP position.
KW - Maternal outcome
KW - Persistent OP position
UR - http://www.scopus.com/inward/record.url?scp=33748547555&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748547555&partnerID=8YFLogxK
U2 - 10.1080/14767050600682487
DO - 10.1080/14767050600682487
M3 - Article
C2 - 16966125
AN - SCOPUS:33748547555
VL - 19
SP - 563
EP - 568
JO - Journal of Maternal-Fetal and Neonatal Medicine
JF - Journal of Maternal-Fetal and Neonatal Medicine
SN - 1476-7058
IS - 9
ER -