| Characteristics, Categorical Variables |
N |
% |
| Positive WB Testing Status1 |
| Repeat positive WB results |
8,193 |
65.5 |
| No repeat positive WB results |
4,311 |
34.5 |
| Gender |
| Male |
8,641 |
69.1 |
| Female |
3,863 |
30.9 |
| Age at HIV Diagnosis (years) |
| 18-19 |
345 |
2.8 |
| 20-24 |
1,389 |
11.1 |
| 25-29 |
1,684 |
13.5 |
| 30-39 |
4,095 |
32.8 |
| 40-49 |
3,319 |
26.5 |
| 50+ |
1,672 |
13.4 |
| Race/Ethnicity |
| Non-Hispanic, white |
2,879 |
23.0 |
| Non-Hispanic, black |
9,045 |
72.3 |
| Hispanic |
455 |
3.6 |
| Other2
|
125 |
1.0 |
| Residence3 |
| Urban |
7,296 |
58.4 |
| Rural |
3,043 |
24.3 |
| Unknown |
2,165 |
17.3 |
| Risk Category4 |
| Male-male sex |
3,843 |
30.7 |
| Heterosexual |
3,831 |
30.6 |
| IDU |
1,033 |
8.3 |
| Male-male sex/IDU |
269 |
2.2 |
| NIR/NRR |
3,502 |
28.0 |
| Vital Status at Data Linkage |
| Alive |
10,149 |
81.2 |
| Deceased |
2,355 |
18.8 |
| Disease Stage Based on Timing of AIDS Diagnosis5 |
| Early |
4,976 |
39.8 |
| Intermediate |
2,513 |
20.1 |
| Late |
5,015 |
40.1 |
| Source of Report6 |
| CHD |
3,224 |
25.8 |
| Group/MD |
2,442 |
19.5 |
| Hospital |
3,475 |
27.8 |
| State facility |
1,051 |
8.4 |
| Federal facility |
394 |
3.2 |
| Another state |
1,367 |
10.9 |
| Other |
468 |
3.7 |
| Unknown |
81 |
0.7 |
| Characteristics, Continuous Variables |
Median |
Range |
| Age at diagnosis (years) |
36.0 |
(29.0-44.0)7
|
| Initial CD4+ T-cell count (cells/L) |
213.0 |
(0.0-2,562.0) |
| Initial viral load (copies/mL) |
23,183.5 |
(250.0-750,000.0) |
1 Repeat Positive: eligible study individuals who had additional confirmatory Western
blots (WB) tests obtained >90 days after initial diagnosis. Each positive WB obtained
after >90 days was considered a separate result. No Repeat Positive: eligible study
individuals who had confirmatory WB tests all obtained <90 days after initial
diagnosis. All considered a single test for analysis purposes.
2 Race/Ethnicity: Other includes Asian, Native Hawaiian/Pacific Islander, legacy
Asian/Pacific Islander, American Indian/Alaska Native, and multiracial individuals.
3 Residence is missing for 1,959 observations.
4 Risk Category: Other modes of exposure, including an adult receiving clotting factor,
transfusion, or transplant, were excluded from the analysis due to small numbers
(n=26). IDU: intravenous drug use; NIR/NRR: no identified risk/no risk factor
reported.
5 Disease Stage: Intermediate Diagnosis was defined as the development of AIDS >1
year after the first positive HIV test; Late Diagnosis was defined as the development of
AIDS <1 year after the first positive HIV test; and Early Diagnosis was defined as no
AIDS diagnosis over the study period.
6 Source of report (facility type that ordered the testing) of initial HIV diagnosis: CHD
= County health department; Group/MD = Group practice/private physician; State
facility includes Dept. of Mental Health and state prisons; Other includes blood banks,
for insurance purposes, etc.
7 The range from the 1st to 3rd quartile is reported for age because of outliers.