Predictors of obstetric intervention rates: case-mix, staffing levels and organisational factors of hospital of birth.

摘要: We performed a cross-sectional study of all Thames maternity units, 1994-96, including 540,834 live and stillbirths. In contrast to recent media speculation, no association caesarean section rates with midwifery staffing levels was found after adjustment for confounders. The only junior obstetric staffing, which could be reflection less experienced management labour. Caesarean were also associated positively the delivery beds, closer monitoring labour that may result from increased bed availability. Both instrumental vaginal epidural rates, expected literature. Variations in mainly variations demographic case-mix, due possibly patient demand. Demographic case-mix deliveries but not rate.