Background: Individuals with HIV, especially those on antiretroviral therapy (ART), may have increased risk of hypertension. We investigated the prevalence of hypertension at enrolment and 12 months after commencing ART in a Nigerian HIV clinic. Methods: Data from patients enrolled for ART from 2011 to 2013 were analysed, including 2310 patients at enrolment and 1524 re-evaluated after 12 months of ART. The presence of hypertension, demographic, clinical and biochemical data were retrieved from standardized databases. Bivariate and logistic regressions were used to identify baseline risk factors for hypertension. Results: Prevalence of hypertension at enrolment was 19.3% (95% CI 17.6-20.9%), and age (p<0.001), male sex (p=0.004) and body mass index (BMI) (p<0.001) were independent risk factors for hypertension. Twelve months after initiating ART, a further 31% (95% CI 17.6-20.9%) had developed hypertension. Total prevalence at that point was 50.2%. Hypertension among those on ART was associated with age (p=0.009) and BMI (p=0.008), but not with sex. There were no independently significant associations between hypertension and CD4+ counts, viral load or type of ART. Conclusions: Hypertension is common in HIV infected individuals attending the HIV clinic. Patients initiating ART have a high risk of developing hypertension in the first year of ART. Since BMI is modifiable, life-style advice aimed at weight reduction is strongly advisable.
Background: Individuals with HIV, especially those on antiretroviral therapy (ART), may have increased risk of hypertension. We investigated the prevalence of hypertension at enrolment and 12 months after commencing ART in a Nigerian HIV clinic. Methods: Data from patients enrolled for ART from 2011 to 2013 were analysed, including 2310 patients at enrolment and 1524 re-evaluated after 12 months of ART. The presence of hypertension, demographic, clinical and biochemical data were retrieved from standardized databases. Bivariate and logistic regressions were used to identify baseline risk factors for hypertension. Results: Prevalence of hypertension at enrolment was 19.3% (95% CI 17.6-20.9%), and age (p<0.001), male sex (p=0.004) and body mass index (BMI) (p<0.001) were independent risk factors for hypertension. Twelve months after initiating ART, a further 31% (95% CI 17.6-20.9%) had developed hypertension. Total prevalence at that point was 50.2%. Hypertension among those on ART was associated with age (p=0.009) and BMI (p=0.008), but not with sex. There were no independently significant associations between hypertension and CD4+ counts, viral load or type of ART. Conclusions: Hypertension is common in HIV infected individuals attending the HIV clinic. Patients initiating ART have a high risk of developing hypertension in the first year of ART. Since BMI is modifiable, life-style advice aimed at weight reduction is strongly advisable.
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