Table 2.
Adjusted hazard ratios relating non-HIV-related health care utilization and baseline characteristics associated with time to initial retention among 5231 individuals linked to HIV care between 2000 and 2010 in British Columbia, Canada
| Model 1 Adjusted hazard ratio (95% CI) |
Model 2 Adjusted hazard ratio (95% CI) |
|
|---|---|---|
| Number of types of non-HIV-related health care services used | ||
| None | 1.00 | Not included |
| One | 1.99 (1.65–2.40) | |
| Two | 2.57 (2.16–3.04) | |
| Three | 2.72 (2.30–3.22) | |
| Four | 1.70 (1.39–2.08) | |
| Non-HIV-related MSP services provided by a general practitioner (yes vs. no) | Not included | 0.79 (0.74–0.84) |
| Non-HIV-related MSP services provided by a specialist (yes vs. no) | 2.79 (2.47–3.16) | |
| Non-HIV-related hospital admissions (yes vs. no) | 0.60 (0.54–0.67) | |
| Non-HIV-related drug prescriptions (yes vs. no) | 1.28 (1.18–1.38) | |
| Sex | ||
| Male | 1.00 | 1.00 |
| Female | 0.83 (0.77–0.90) | 0.84 (0.78–0.91) |
| Age | ||
| < 30 years | 0.92 (0.85–1.00) | 0.93 (0.86–1.01) |
| 30–39 years | 1.00 | 1.00 |
| 40–49 years | 1.15 (1.07–1.24) | 1.16 (1.08–1.24) |
| ≥ 50 years | 1.15 (1.05–1.26) | 1.13 (1.03–1.23) |
| AIDS diagnosed | ||
| No | 1.00 | 1.00 |
| Yes | 1.32 (1.22–1.43) | 1.32 (1.22–1.43) |
| HIV risk factors | ||
| MSM | 1.00 | 1.00 |
| PWID | 0.71 (0.66–0.77) | 0.73 (0.68–0.79) |
| Heterosexual | 1.02 (0.92–1.12) | 1.09 (0.99–1.20) |
| Other/unknown | 0.39 (0.35–0.42) | 0.42 (0.39–0.46) |
| Patient’s residing health authority | ||
| Vancouver Coastal | 1.00 | 1.00 |
| Fraser | 0.88 (0.82–0.95) | 0.92 (0.86–0.99) |
| Interior | 0.88 (0.78–1.00) | 0.97 (0.85–1.10) |
| Vancouver Island | 1.04 (0.95–1.15) | 1.12 (1.02–1.24) |
| Northern | 1.00 (0.86–1.16) | 1.08 (0.93–1.25) |
| Other/unknown | 0.62 (0.48–0.80) | 0.64 (0.50–0.82) |
Model 1 includes the variable “the number of different types of non-HIV-related services used” but does not includes the four types of “non-HIV-related health care services” variables. Model 2 includes the four “types of non-HIV-related health care services” variables but does not include the “number of different types of non-HIV-related services used” variable. All variables in Weibull model 1 and model 2 were measured during the year an individual was linked to HIV care except for the four types of non-HIV-related health care service variables. These variables were measured from the time of linkage to the end of study follow-up. CI, confidence interval; GP, general practitioner; MSM, men who have sex with men; MSP, Medical Services Plan (British Columbia’s medical billing system); PWID, people who inject drugs.