Psychosocial factors and mode of delivery.

Childbirth is a substantial physical and emotional endeavor. Because emergency Cesarean and instrumental vaginal delivery impose a greater mortality and physical and emotional morbidity on both the mother and the infant than normal vaginal delivery, it is important to identify factors that are associated with the risk of operative delivery. In previous investigations, some associations have been found, but the effect of psychosocial factors is not clear. In this study we examined several factors which could be associated with the risk for instrumental and surgical delivery. In addition to biomedical factors we included psychosocial factors such as depressive symptoms, quality of the relationship of the woman with her partner, personality, lifestyle and educational level. We assessed 354 healthy nulliparous pregnant women with a child in vertex presentation and spontaneous onset of term labor using validated questionnaires. We found that social support from the woman's partner in pregnancy, lack of depressive symptoms and specific personality traits are not protective against instrumentally assisted vaginal delivery or emergency Cesarean section. Predictive factors for operative delivery after spontaneous onset of labor are higher fetal weight, non-occiput anterior presentation and advanced gestational age, and foremost fetal distress during parturition.