Table 1.
Demographic and Clinical Characteristics of Study Sample
| Variable | N (%) | Outpatient Time (months) [median, iqr] | Ratio of Actual Outpatient Time to Possible Outpatient Time [median, iqr] |
|---|---|---|---|
| Overall | 22,984 (100%) | 25 (9,54) | 0.60 (0.17, 0.97) |
| Gender | |||
| Female | 6,357 (27.7) | 27 (10,58) | 0.82 (0.20, 0.98) |
| Male | 16,627 (72.3) | 25 (8,53) | 0.73 (0.17, 0.97) |
| Race/Ethnicity | |||
| White | 6,157 (26.8) | 23 (8,52) | 0.64 (0.15, 0.96) |
| Black | 11,040 (48.0) | 27 (10,57) | 0.82 (0.21, 0.97) |
| Hispanic | 4,931 (21.4) | 26 (9,56) | 0.81 (0.16, 0.98 |
| Other | 451 (2.0) | 22 (7,47) | 0.58 (0.13, 0.96) |
| Missing | 405 (1.8) | 11 (3,26) | 0.29 (0.06, 0.82) |
| Risk Group | |||
| MSM | 8,601 (37.4) | 26 (10,54) | 0.76 (0.20, 0.97) |
| HET | 8,857 (38.5) | 29 (11,59) | 0.85 (0.23, 0.98) |
| IDU | 1,904 (8.3) | 20 (5,44) | 0.58 (0.09, 0.96) |
| HET+IDU | 1,247 (5.4) | 33 (12,65) | 0.83 (0.29, 0.98) |
| MSM+IDU | 694 (3.0) | 30.5 (10,60) | 0.72 (0.19, 0.96) |
| Missing | 1,681 (7.3) | 10 (2,26) | 0.19 (0.03, 0.85) |
| Age at Enrollment | |||
| 18-29 | 4,035 (17.6) | 23 (8,52) | 0.71 (0.16, 0.96) |
| 30-39 | 7,593 (33.0) | 26 (8,59) | 0.69 (0.15, 0.97) |
| 40-49 | 7,876 (34.3) | 26 (9,53) | 0.79 (0.19, 0.98) |
| 50+ | 3,480 (15.1) | 49 (27,77) | 0.88 (0.24, 0.98) |
| Initial Insurance | |||
| Private | 2,731 (11.9) | 24 (10,49) | 0.80 (0.20, 0.97) |
| Medicaid | 7,361 (32.0) | 24 (8,51) | 0.77 (0.16, 0.98) |
| Medicare/Dual | 1,802 (7.8) | 21 (7,44) | 0.78 (0.17, 0.97) |
| None/Ryan White | 8,063 (35.1) | 26 (9,56) | 0.76 (0.17, 0.97) |
| Missing | 3,027 (13.2) | 36 (11,66) | 0.70 (0.19, 0.97) |
| Initial CD4 | |||
| <50 | 3,008 (13.1) | 25 (8,55) | 0.82 (0.20, 0.97) |
| 51-200 | 4,231 (18.4) | 24 (9,53) | 0.78 (0.18, 0.97) |
| 201-350 | 4,679 (20.4) | 25 (8,53) | 0.75 (0.16, 0.97) |
| 351-500 | 4,061 (17.7) | 25 (8,53) | 0.73 (0.16, 0.97) |
| 501+ | 5,863 (25.5) | 24 (7,53) | 0.69 (0.14, 0.97) |
| Missing | 1,142 (5.0) | 40 (20,72) | 0.87 (0.45, 0.97) |
| Year of first visit | |||
| 2001 | 3,135 (13.6) | 45 (9,96) | 0.57 (0.09, 0.97) |
| 2002 | 2,702 (11.8) | 51 (14,86) | 0.74 (0.18, 0.98) |
| 2003 | 3,186 (13.9) | 49 (14,75) | 0.74 (0.20, 0.98) |
| 2004 | 2,887 (12.6) | 40 (9,62) | 0.68 (0.14, 0.97) |
| 2005 | 2,495 (l0.9) | 33 (7,51) | 0.68 (0.14, 0.96) |
| 2006 | 2,565 (11.2) | 34 (8,41) | 0.84 (0.20, 0.98) |
| 2007 | 2,860 (12.4) | 24 (7,29) | 0.84 (0.23, 0.97) |
| 2008 | 3,154 (13.7) | 13 (6, 18) | 0.83 (0.32, 0.95) |
| First HIV-1 RNA | |||
| Not suppressed | 15,157 (66.0) | 24 (8, 53) | 0.74 (0.16, 0.97) |
| Suppressed | 5,696 (24.8) | 24 (8, 51) | 0.78 (0.17, 0.97) |
| Missing | 2,131 (9.2) | 38 (14,70) | 0.76 (0.17, 0.97) |
Note: MSM – Men who have sex with men; IDU – injection drug use; HET – heterosexual transmission; iqr – inter-quartile range.