A comparison of HIV positive and negative pregnant women at a public sector hospital in South Africa

Abstract

The aim of the study was to compare HIV positive and negative pregnant women with respect to maternal and neonatal outcome to inform the development of clinical practice guidelines. HIV infection in pregnancy places an added burden on the physical ability of the woman's body to cope with pregnancy. As a result HIV causes an exaggeration of the problems related to pregnancy. Data were collected by means of a retrospective record review conducted on 212 stratified randomly selected HIV positive and 101 matched HIV negative pregnant women. The two sample t-test and Fisher exact test were used to compare the maternal and neonatal outcomes of HIV positive and negative pregnant women. HIV positive pregnant women had a significantly lower haemoglobin (10.85 vs. 11.48 g/dl; P = 0.001), attended significantly fewer antenatal clinic appointments (4.03 vs. 4.63; P = 0.04), weighed significantly less (72.07 vs. 76.69 kg; P = 0.02) and were significantly more likely to present with an abnormal vaginal discharge (32.55 vs. 24.75%; P = 0.02) than HIV negative pregnant women. The difference in the prevalence in HIV positive pregnant women of pregnancy induced hypertension (16.98 vs. 9.90%; P = 0.06), syphilis infection (5.95 vs. 0.99%; P = 0.062) and urinary tract infection (15.53 vs. 7.92%; P = 0.06) approached significance when compared with HIV negative pregnant women. HIV positive pregnant women were significantly more likely to present with intrauterine growth retardation (4.72 vs. 0%; P = 0.03), significantly more likely to deliver earlier (37.92 vs. 38.51 weeks; P = 0.03) and significantly more likely to deliver neonates weighing less (2969.98 vs. 3138.43 g; P = 0.01) than HIV negative pregnant women. The Department of Health attributes the high rate of HIV and AIDS related maternal morbidity and mortality in South Africa to the absence of accepted and practical guidelines for midwives' antenatal assessment and management of HIV positive pregnant women. Relevance to clinical practice. This study identifies maternal and neonatal outcomes related to HIV infection in pregnancy and provides evidence required to inform the development of clinical practice guidelines.