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. 2014 Oct 8;17(1):19242.
doi: 10.7448/IAS.17.1.19242. eCollection 2014.

Disengagement of HIV-positive pregnant and postpartum women from antiretroviral therapy services: a cohort study

Tamsin Phillips  1 , Elizabeth Thebus  2 , Linda-Gail Bekker  2 , James Mcintyre  3 , Elaine J Abrams  4 , Landon Myer  5
Affiliations

Disengagement of HIV-positive pregnant and postpartum women from antiretroviral therapy services: a cohort study

Tamsin Phillips et al. J Int AIDS Soc. .

Abstract

Introduction: Recent international guidelines call for expanded access to triple-drug antiretroviral therapy (ART) in HIV-positive women during pregnancy and postpartum. However, high levels of non-adherence and/or disengagement from care may attenuate the benefits of ART for HIV transmission and maternal health. We examined the frequency and predictors of disengagement from care among women initiating ART during pregnancy in Cape Town, South Africa.

Methods: We used routine medical records to follow-up pregnant women initiating ART within prevention of mother-to-child transmission of HIV services in Cape Town, South Africa. Outcomes assessed through six months postpartum were (1) disengagement (no attendance within 56 days of a scheduled visit) and (2) missed visits (returning to care 14-56 days late for a scheduled visit).

Results: A total of 358 women (median age, 28 years; median gestational age, 26 weeks) initiated ART during pregnancy. By six months postpartum, 24% of women (n=86) had missed at least one visit and an additional 32% (n=115) had disengaged from care; together, 49% of women had either missed a visit or had disengaged by six months postpartum. Disengagement was more than twice as frequent postpartum compared to in the antenatal period (6.2 vs. 2.4 per 100 woman-months, respectively; p<0.0001). In a proportional hazards model, later gestational age at initiation (HR: 1.04; 95% CI: 1.00-1.07; p=0.030) and being newly diagnosed with HIV (HR: 1.57; 95% CI: 1.07-2.33; p=0.022) were significant predictors of disengagement after adjusting for patient age, starting CD4 cell count and site of ART initiation.

Conclusions: These results demonstrate that missed visits and disengagement from care occur frequently, particularly post-delivery, among HIV-positive women initiating ART during pregnancy. Women who are newly diagnosed with HIV may be particularly vulnerable and there is an urgent need for interventions both to promote retention overall, as well as targeting women newly diagnosed with HIV during pregnancy.

Keywords: HIV/AIDS; South Africa; antiretroviral therapy; postpartum; pregnancy; prevention of mother-to-child transmission (PMTCT); retention.

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Figures

Figure 1
Figure 1
Kaplan–Meier curves of the probability of retention in care for a) ART initiation to six months postpartum, b) ART initiation to delivery and c) delivery to six months postpartum (log rank p-values presented).
Figure 2
Figure 2
Kaplan–Meier curve of retention during the antenatal and postpartum periods by ART initiation site.
See this image and copyright information in PMC

References

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