Adverse obstetric outcomes in two Brazilian maternity hospitals.

Purpose: Obstetric adverse outcomes (AOs) are an important topic and the use of composite measures may favor the understanding of their impact on patient safety. The aim of the present study was to estimate AO frequency and obstetric care quality in low and high-risk maternity hospitals.

Design/methodology/approach: A one-year longitudinal follow-up study in two public Brazilian maternity hospitals.