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Stillbirth in women living with HIV delivering in the UK and Ireland: 2007-2015

Favarato, G; Townsend, CL; Peters, H; Sconza, R; Bailey, H; Borja, MC; Tookey, P; (2019) Stillbirth in women living with HIV delivering in the UK and Ireland: 2007-2015. Journal of Acquired Immune Deficiency Syndromes (JAIDS) 10.1097/QAI.0000000000002087. (In press). Green open access

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Abstract

BACKGROUND: Women living with HIV have a higher risk of adverse birth outcomes but questions remain regarding their specific risk factors for stillbirth and the extent to which maternal HIV is associated with stillbirth. METHODS: Using data on pregnant women with HIV reported within population-based surveillance in the UK/Ireland, we described stillbirth rates in 2007-2015 stratified by type of antiretroviral therapy (ART) and evaluated risk factors using Poisson regression. General population stillbirth rates by maternal world region of origin were derived from national annual birth statistics, and compared to rates in women with HIV, using standardised stillbirth ratios (SSR) with the general population as the reference. RESULTS: Between 2007 and 2015 there were 10434 singleton deliveries in 8090 women with HIV; 75% of pregnancies were in women of African origin and 49% were conceived on ART. The stillbirth rate was 8.5 (95% confidence interval [CI], 6.9, 10.5) per 1000 births. Risk factors for stillbirth included pre-eclampsia, diabetes, Asian maternal origin (versus UK/Ireland), CD4 count <350cells/mm, older maternal age and primiparity. Conceiving on ART did not increase the risk. The stillbirth rates (per 1000 births) by type of ART were 14.3, 11.7, 8.3, and 6.0 respectively for NVP+XTC/TDF-, LPV/r+3TC/ZDV-, NVP+XTC/ABC- and NVP+XTC/ZDV-exposed pregnancies (p- value=0.40). The SSR was 129 (95%CI 101, 165) in women with HIV compared with the general population. CONCLUSION: After adjusting for maternal origin, the stillbirth rate remained higher in women with HIV than the general population. We recommend further studies to understand and prevent this excess.

Type: Article
Title: Stillbirth in women living with HIV delivering in the UK and Ireland: 2007-2015
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1097/QAI.0000000000002087
Publisher version: https://doi.org/10.1097/QAI.0000000000002087
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute for Global Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Population, Policy and Practice Dept
URI: https://discovery.ucl.ac.uk/id/eprint/10075764
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