Table 1.
Baseline Characteristics of Acute Human Immunodeficiency Virus (HIV) Infection and HIV-Negative Cases
| Characteristic | Total (N = 998) | AHI (n = 113) | HIV-Negative (n = 885)a | P Value |
|---|---|---|---|---|
| Age, y, median (IQR) | 33 (27–43) | 32 (25–42) | 33 (27–43) | .113b |
| Gender, No. (%) | ||||
| Cisgender men | 886 (88.8) | 111 (98.2) | 775 (87.6) | .001c |
| Cisgender women | 109 (10.9) | 1 (0.9) | 108 (12.2) | <.001d |
| Transgender women | 2 (0.2) | 1 (0.9) | 1 (0.1) | .214d |
| Declined | 1 (0.1) | 0 (0.0) | 1 (0.1) | 1d |
| MSM, No. (%) | 737 (73.8) | 109 (96.4) | 628 (71.0) | <.001c |
| Race, No. (%) | ||||
| White | 615 (61.6) | 77 (68.1) | 538 (60.8) | .13c |
| Black | 96 (9.6) | 10 (8.8) | 86 (9.7) | .768c |
| Asian | 112 (11.2) | 9 (8.0) | 103 (11.6) | .244c |
| Native American | 17 (1.7) | 5 (4.4) | 12 (1.4) | .035d |
| Pacific Islander | 21 (2.1) | 5 (4.4) | 16 (1.8) | .079d |
| Othere | 47 (4.7) | 1 (0.9) | 46 (5.2) | .035d |
| Declined | 90 (9.0) | 6 (5.3) | 84 (9.5) | .144d |
| Hispanic | 309 (31.0) | 36 (31.9) | 273 (30.8) | .827c |
Abbreviations: AHI, acute human immunodeficiency virus infection; HIV, human immunodeficiency virus; IQR, interquartile range; MSM, men who have sex with men.
aOf 885 negative HIV nucleic acid tests, 842 were from unique individuals; 43 were repeat tests.
bMann-Whitney U test.
cPearson χ2 test.
dFisher exact test.
eAlaska Native, Native Hawaiian, unknown, or other (not specified).