Utilizing a prospective study of health sen-ice activity for HIV/AIDS,
2 estimates of hospital costs of care analysed with reference to gend
er, risk activity, immunological and clinical staging (1987 definition
of AIDS) were undertaken. Utilizing combined costs per life year (bas
ed on hospital and hospice activity but not primary and community care
) the ratio of costs for CD4 < 200 and CD4 > 200 was for most risk gro
ups between 2-5:1 whilst for AIDS:pre-AIDS it was between 3.6-8.3:1 ex
cept for homosexuals where it was 12.6:1. A comparison of the standard
hospital costs for infectious diseases with the published accounts fo
r clinical AIDS care in Lothian suggests a 3-4-fold underestimate in t
he costs of providing a comprehensive health care service.