Abstract
We compared the health-related quality of life (HRQL) of Aboriginal and non-Aboriginal HIV patients after they started highly active antiretroviral therapy (HAART) in Edmonton, Alberta and investigated whether clinical status (CD4 cell count and viral load) might explain any observed differences. In 2006-2007, eligible patients who started HAART in 1997-2005 completed the MOS-HIV to measure HRQL. Using multiple linear regression models, we compared physical (PHS) and mental (MHS) health summary scores across four groups: Aboriginals infected with HIV via injection drug use (AB/IDUs); Aboriginal non-IDUs (AB/non-IDUs); non-Aboriginal IDUs (non-AB/IDUs); and non-Aboriginal non-IDUs (non-AB/non-IDUs). To assess whether clinical status could explain any observed group differences, we fitted a model adjusting for socio-demographics (age and sex) and years since starting HAART only and then additionally adjusted for current clinical status. Ninety-six patients were eligible (35% Aboriginal, 42% IDU). Adjusting for socio-demographics and years since starting HAART, AB/IDUs (p=0.008), AB/non-IDUs (p=0.002), and non-AB/IDUs (p=0.002) had lower PHS scores than non-AB/non-IDUs. After additionally adjusting for clinical status, these relationships remained significant for AB/non-IDUs (p=0.027) and non-AB/IDUs (p=0.048) but not for AB/IDUs (p=0.12). AB/IDUs and non-AB/IDUs tended to have worse MHS scores than non-AB/non-IDUs, but these relationships were not statistically significant and weakened after adjusting for current clinical status. AB/IDU, AB/non-IDUs, and non-AB/IDUs had significantly poorer physical HRQL than non-AB/non-IDUs. These differences appear to be partially explained by poorer clinical status, especially for AB/IDUs, which suggests that observed inequalities in physical HRQL may be diminished by improving patients' clinical status; for example, through improved adherence to HAART.
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More From: Canadian journal of public health = Revue canadienne de sante publique
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