The Economic Impact of Herpes Zoster Vaccine Disparities in Elderly United States Blacks.

There are persistent disparities with regard to receipt of herpes zoster vaccine among elderly blacks, but no data is available regarding the public health or economic impact of these disparities. A decision tree was constructed with multiple Markov nodes in order to estimate the preventable cases of herpes zoster occurring among elderly blacks due to disparities in receipt of herpes zoster vaccine and to quantify the economic costs associated with these disparities. The model was constructed to examine the number of herpes zoster cases occurring among elderly blacks from the age of 60 to 84 over a 20 year period and also calculated costs due to herpes zoster complications and lost productivity. Achievement of health equity would prevent over 34,500 cases of herpes zoster from occurring in the future and avert over $180 million in lost productivity and treatment costs as a result of these cases of herpes zoster. These results help to show that thousands of cases of herpes zoster could be prevented if blacks were vaccinated at the same frequency as whites and help to show the benefit of implementing viable strategies to achieving this goal.

Assessment and predictors of antiretroviral adherence in older HIV-infected patients.

Advances in the diagnosis and treatment of HIV disease have resulted in increased survival for HIV-infected patients. Strict adherence to antiretroviral therapy is required to obtain these benefits, however. This holds true for older patients who often are diagnosed later in their disease course and who have shorter survival periods than younger patients. Although there have been few studies of antiretroviral adherence in older HIV patients, this article reviews the literature regarding antiretroviral adherence in younger HIV-infected adults as well as studies of medication adherence in older patients with other disease states. It then discusses the application of adherence interventions in these other populations to older HIV-infected adults. Several methods have been used in measuring antiretroviral adherence, including electronic monitoring, self-report, pill counts, viral load, therapeutic drug monitoring, and several other techniques. The advantages and disadvantages of these methods also are presented as well as recommendations for future adherence research in older HIV-infected adults. Finally, this article details areas of unmet research need concerning HIV medication adherence in older adults.