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Health Insurance Type and Control of Hypertension Among US Women Living With and Without HIV Infection in the Women’s Interagency HIV Study.

Health Insurance Type and Control of Hypertension Among US Women Living With and Without HIV Infection in the Women’s Interagency HIV Study.
Author Information (click to view)

Ludema C, Cole SR, Eron JJ, Holmes GM, Anastos K, Cocohoba J, Cohen MH, Cooper HL, Golub ET, Kassaye S, Konkle-Parker D, Metsch L, Milam J, Wilson TE, Adimora AA,


Ludema C, Cole SR, Eron JJ, Holmes GM, Anastos K, Cocohoba J, Cohen MH, Cooper HL, Golub ET, Kassaye S, Konkle-Parker D, Metsch L, Milam J, Wilson TE, Adimora AA, (click to view)

Ludema C, Cole SR, Eron JJ, Holmes GM, Anastos K, Cocohoba J, Cohen MH, Cooper HL, Golub ET, Kassaye S, Konkle-Parker D, Metsch L, Milam J, Wilson TE, Adimora AA,

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American journal of hypertension 2017 04 12() doi 10.1093/ajh/hpx015
Abstract
BACKGROUND
Health care access is an important determinant of health. We assessed the effect of health insurance status and type on blood pressure control among US women living with (WLWH) and without HIV.

METHODS
We used longitudinal cohort data from the Women’s Interagency HIV Study (WIHS). WIHS participants were included at their first study visit since 2001 with incident uncontrolled blood pressure (BP) (i.e., BP ≥140/90 and at which BP at the prior visit was controlled (i.e., <135/85). We assessed time to regained BP control using inverse Kaplan-Meier curves and Cox proportional hazard models. Confounding and selection bias were accounted for using inverse probability-of-exposure-and-censoring weights. RESULTS
Most of the 1,130 WLWH and 422 HIV-uninfected WIHS participants who had an elevated systolic or diastolic measurement were insured via Medicaid, were African-American, and had a yearly income ≤$12,000. Among participants living with HIV, comparing the uninsured to those with Medicaid yielded an 18-month BP control risk difference of 0.16 (95% CI: 0.10, 0.23). This translates into a number-needed-to-treat (or insure) of 6; to reduce the caseload of WLWH with uncontrolled BP by one case, five individuals without insurance would need to be insured via Medicaid. Blood pressure control was similar among WLWH with private insurance and Medicaid. There were no differences observed by health insurance status on 18-month risk of BP control among the HIV-uninfected participants.

CONCLUSIONS
These results underscore the importance of health insurance for hypertension control-especially for people living with HIV.

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