Are all skilled birth attendants created equal? A cluster randomised controlled study of non-physician based obstetric care in primary health care clinics in Mexico.

BACKGROUND: the great majority of births in Mexico are attended by physicians. Non-physician health professionals have never been evaluated or compared to the medical model of obstetric care. This study evaluates the relative strengths of adding an obstetric nurse or professional midwife to the physician based team in rural clinics. METHODS: we undertook a cluster-randomised trial in 27 clinics in 2 states with high maternal mortality. Twelve non-physician providers (obstetric nurses (4) and professional midwives (8)) were randomly assigned to clinics; 15 clinics served as control sites. Over an 18-month period in 2009-2010, we evaluated quality of care through chart review and monthly interviews with providers about last three deliveries performed. We analysed practices by creating indices using WHO care guidelines for normal labour and childbirth. Volume of care was assessed using administrative reporting forms. FINDINGS: two thousand two hundred fifty-four pregnancies were followed, and a total of 461 deliveries occurred in study sites. Intervention clinics were more likely to score highly on the index for favourable practices on admission (OR=3.6, 95% CI 2.3-5.8), and during labour, childbirth, and immediately post partum (OR=8.6, 95% CI 2.9-25.6) and less likely to use excessively used or harmful practices during labour, childbirth and immediately post partum (OR=0.2, 95% CI 0.1-0.4). There was a significant increase in volume of care in intervention clinics for antenatal visits (incidence rate ratio (IRR) 1.3, 95% CI 1.2-1.4), deliveries (IRR=2.5, 95% CI 1.7-3.7) and for postpartum visits (IRR=1.4, 95% CI 1.1-1.7). INTERPRETATION: the addition of non-physician skilled birth attendants to rural clinics in Mexico where they independently provided basic obstetric services led to improved care and higher coverage than clinics without. The potential value of including a professional midwife or obstetric nurse in all rural clinics providing obstetric care should be considered. FUNDING: Mexican National Institute for Women, Mexican National Center for Gender Equity and Reproductive Health, MacArthur Foundation, Bill and Melinda Gates Foundation.

Skilled birth attendants in Mexico: how does care during normal birth by general physicians, obstetric nurses, and professional midwives compare with World Health Organization evidence-based practice guidelines?

INTRODUCTION: We evaluated the quality of basic obstetric care provided by Mexican general physicians, obstetric nurses, and professional midwives compared with World Health Organization (WHO) guidelines for evidence-based practices and national guidelines. METHODS: Vaginal births were observed in 5 hospitals in 5 states from June 2006 until July 2007. We created 5 indices based on WHO guidelines and national standards for care during normal birth. These indices included 1) favorable practices at admission, 2) favorable practices during labor, birth, and immediately postpartum, 3) harmful or excessively used practices, 4) newborn practices, and 5) obstetric outcomes. We assessed each provider type's performance as high or low compared with the WHO standard and performed bivariate and multivariate logistic regression analyses to assess the association between indices, patient characteristics, and provider type, adjusting for standard errors for intragroup correlation. RESULTS: We observed 876 independently managed vaginal births. Adjusted regression analyses compared with the general physicians standard revealed significant results for favorable care by obstetric nurses on admission (odds ratio [OR] 6.25; 95% confidence interval [CI], 2.08-18.84); for care by professional midwives (OR 21.08; 95% CI, 4.24-104.94) and obstetric nurses (OR 7.88; 95% CI, 2.76-22.52) during labor, birth, and postpartum; and for newborn practices by obstetric nurses (OR 4.14; 95% CI, 1.08-15.90). Professional midwives were least likely to perform harmful/excessively used practices during labor, birth, and the postpartum period (OR 0.06; 95% CI, 0.00-0.35). DISCUSSION: Professional midwives and obstetric nurses perform equally or better than general physicians when assessed by use or misuse of evidence-based practices. Professional midwives are an underutilized resource in Mexico. If integrated into the mainstream Mexican health system, they may improve the quality of obstetric care.