The association of maternal and socioeconomic characteristics in metropolitan Adelaide with medical, obstetric and labour complications and pregnancy outcomes.

Multiple regression analysis was used to measure associations of maternal age, race, gravidity, marital status and socioeconomic status with medical problems and pregnancy outcomes. The study population comprised all singleton births to residents of metropolitan Adelaide (in South Australia) during 1988 that were included in the State's perinatal statistics collection. The results indicate that in metropolitan Adelaide, low socioeconomic status is related to a higher risk profile of mothers and babies. It also highlights that there is a strong association of divorce and separation with medical problems and an adverse pregnancy outcome. Poorer outcomes are also seen in never married women, teenage women, older women, non-Caucasian women and primigravid women. These poorer outcomes in older women and primigravidas include higher risks of low birth-weight and prematurity of their babies. The study also demonstrates that groups that are less likely to have choice of obstetric care, eg. teenage women, non-Caucasian women, and women of low socioeconomic status, have a lower odds of obstetric intervention as characterized by nonspontaneous labour and elective Caesarean section.