5 September 2012

South Africa: Increased Mortality in Men Unrelated to HIV

HIV positive men in South Africa are presenting much later for treatment than women and are much more likely to die that HIV-positive women who are receiving similar treatment, an international study has revealed.

Published this week in the journal PLOS Medicine, the researchers caution that the differences in the death rate are most likely to be due to gender differences in death rates in the general population and unrelated to HIV although the fact that the men presented late also played a role in some cases. They found that the men are a third more likely to die.

The research collaboration, led by the University of Cape Town, analysed data from 46 201 adults who started taking antiretroviral therapy (ART) between 2002 and 2009 in eight HIV treatment programmes in South Africa, including the Western Cape.

They found that men were also more likely to be lost to follow-up than women, but that both who were lost to follow-up were equally likely to die.

South Africa has the largest ART programme worldwide with nearly 1,64-million adults initiating ART since 2004.

The study was initiated to urgently evaluate the outcomes of the programme in order to improve delivery of services with a particular interest in gender differences.

Studies from Europe and North America have suggested a higher risk of death on ART for women than men, while the opposite was happening in sub-Saharan Africa.

The researchers acknowledged that the reasons for men's late entry into ART programmes were poorly understood, but frequently are attributed to gender differences in health-seeking behavior or in routes of referral. An alternate explanation is also that while prioritising maternal and child health services in many public health systems, men's primary health care needs may have been neglected.

PLOS Medicine cautioned in an editorial that similar studies needed to be done in other settings to investigate whether they are generalizable to the South African national ART programme and to other countries. If confirmed, these findings would suggest that the root causes of gender differences in mortality on antiretroviral therapy may be unrelated to HIV/AIDS or to the characteristics of ART programmes.

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