文档介绍：Injection risk
Sex risk
HIV Risk Index: Estimating Potential Transmission
We use a “pipeline” estimate of HIV risk. By estimating the “HIV carrying capacity” of the joint behaviors between the partners, we can estimate the conditional probability of HIV transmission if the partner were HIV+.
risk indexik
where
i is respondent
k is partner
j is risk behavior
fj is per-act risk
cijk is number of 30-day risk behaviors
Imputed per-act transmission probabilities:
Vaginal sex from male to female without condom Vaginal sex from female to male without condom Vaginal sex from male to female with condom Vaginal sex from female to male with condom Receptive anal sex without a condom Insertive anal sex without a condom Receptive anal sex with a condom Insertive anal sex with a condom Shared injection equipment (infected) Shared cooker, cotton, or water
The HIV Transmission Gradient: Relationship-level Estimates of Risk
David C. Bell, Isaac D. Montoya
Affiliated Systems Corporation, Houston
Of critical importance in the transmission of HIV are “gatekeepers,” the HIV-negative partners of persons who are HIV-infected. These are the persons at risk and they are the persons who can eventually spread the disease further. And since the highest infectivity comes in the first months