Expenditures for the Care of HIV-Infected Patients in the Era of Highly Active Antiretroviral Therapy
Samuel A. Bozzette, M.D., Ph.D., Geoffrey Joyce, Ph.D., Daniel F. McCaffrey, Ph.D., Arleen A. Leibowitz, Ph.D., Sally C. Morton, Ph.D., Sandra H. Berry, M.A., Afshin Rastegar, M.S., David Timberlake, M.P.H., Martin F. Shapiro, M.D., Ph.D., Dana P. Goldman, Ph.D., for The HIV Cost and Services Utilization Study Consortium
Background The introduction of expensive but very effectiveantiviral medications has led to questions about the effectson the total use of resources for the care of patients withhuman immunodeficiency virus (HIV) infection. We examined expendituresfor the care of HIV-infected patients since the introductionof highly active antiretroviral therapy.
Methods We interviewed a random sample of 2864 patients whowere representative of all American adults receiving care forHIV infection in early 1996, and followed them for up to 36months. We estimated the average expenditure per patient permonth on the basis of self-reported information about care received.
Results The mean expenditure was $1,792 per patient per monthat base line, but it declined to $1,359 for survivors in 1997,since the increases in pharmaceutical expenditures were smallerthan the reductions in hospital costs. Use of highly activeantiretroviral therapy was independently associated with a reductionin expenditures. After adjustments for the interview date, clinicalstatus, and deaths, the estimated annual expenditure declinedfrom $20,300 per patient in 1996 to $18,300 in 1998. Expendituresamong subgroups of patients varied by a factor of as much asthree. Pharmaceutical costs were lowest and hospital costs highestamong underserved groups, including blacks, women, and patientswithout private insurance.
Conclusions The total cost of care for adults with HIV infectionhas declined since the introduction of highly active antiretroviraltherapy. Expenditures have increased for medications but havedeclined for other services. However, there are large variationsin expenditures across subgroups of patients.
Source Information
From RAND Health, Santa Monica (S.A.B., G.J., D.F.M., A.A.L., S.C.M., S.H.B., A.R., M.F.S., D.P.G.); the University of California, San Diego (S.A.B., D.T.); the University of California, Los Angeles (A.A.L., M.F.S.); and the Veterans Affairs San Diego Healthcare System (S.A.B., D.T.) all in California.
Address reprint requests to Dr. Bozzette at RAND, 1700 Main St., Santa Monica, CA 90407-2318, or at sbozzette{at}ucsd.edu.
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