Variables Used in the Analysis

Categories of survey questions include demographic characteristics, qualifications and experience, practice characteristics, and professional satisfaction. Using facility data obtained for MMP, we ascertained whether providers worked at a facility that received any RWHAP funding or in a private practice. For analyses comparing characteristics of these 2 groups, sampled providers who practiced in facilities that were neither RWHAP funded nor private practices (n = 132) or were both (n = 61) were excluded. For all analyses that involved providers at RWHAP-funded facilities, providers practicing at facilities with RWHAP funding status (n = 107) that was not ascertained were excluded. To assess whether this exclusion biased estimates of the prevalence of characteristics of providers at RWHAP-funded facilities and private practices, we performed a sensitivity analysis (see Supplementary Methods).

To investigate the differences between providers entering and leaving HIV practice, we categorized providers into 3 groups: those who (1) entered practice in the past 5 years, (2) planned to leave practice within the next 5 years, and (3) were in practice for at least 5 years and did not plan to leave practice in the next 5 years. We excluded 9 providers in practice <5 years who planned to leave within the next 5 years. To compare the counts of providers entering and leaving the workforce, the number of providers in each category and hours in HIV patient care for each provider were converted to full-time equivalents (FTEs) [13], defined as 40 hours of HIV patient care.