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1.  Predictors of reported influenza vaccination in HIV-infected women in the United States, 2006-07 and 2007-08 seasons 
Preventive medicine  2010;50(5-6):223-229.
Objective
To estimate the cumulative incidence of self-reported influenza vaccination (“vaccination coverage”) and investigate predictors in HIV-infected women.
Methods
In an ongoing cohort study of HIV-infected women in five US cities, data from two influenza seasons (2006-07 n=1,209 and 2007-08 n=1,161) were used to estimate crude and adjusted prevalence ratios (aPR) and 95% confidence intervals ([,]) from Poisson regression with robust variance models using generalized estimating equations (GEE).
Results
In our study, 55% and 57% of HIV-infected women reported vaccination during the 2006-07 and 2007-08 seasons, respectively. Using data from both seasons, older age, non-smoking status, CD4 T-lymphocyte (CD4) count ≥200 cells/mm3, and reporting at least one recent healthcare visit was associated with increased vaccination coverage. In the 2007-08 season, a belief in the protection of the vaccine (aPR=1.38 [1.18, 1.61]) and influenza vaccination in the previous season (aPR=1.66 [1.44, 1.91]) most strongly predicted vaccination status.
Conclusion
Interventions to reach unvaccinated HIV-infected women should focus on changing beliefs about the effectiveness of influenza vaccination and target younger women, current smokers, those without recent healthcare visits, or a CD4 count <200 cells/mm3.
doi:10.1016/j.ypmed.2010.03.007
PMCID: PMC2883293  PMID: 20303362
HIV/AIDS; highly active antiretroviral therapy; influenza vaccine; vaccine coverage; multi-center study; cohort study; United States; adult; female

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