Table 1.

Sample Characteristics

Characteristics
Age (N, %)
18–29	457 (17.1)
30–39	757 (28.3)
40–49	907 (33.8)
>50	559 (20.9)
Contributing sitesa (n, %)
San Diego	519 (19.4)
Birmingham	589 (22.0)
Seattle	511 (19.1)
Boston	322 (12.0)
Baltimore	568 (21.2)
San Francisco	171 (6.4)
Race/ethnicity (n, %)
White	1071 (39.9)
Black	1201 (44.8)
Latinx	268 (10.0)
Other	131 (4.8)
Not reported	9 (0.50)
Index (M, SD)b
10-item version	4.50 (0.60)
3-Item Version	4.44 (0.64)
Median HIV care visits a year after Index (IQR)	4 (2–6)

Abbreviations: HIV, human immunodeficiency virus; IQR, interquartile range; M, mean; SD, standard deviation.

^aHIV care sites are affiliated with the University of California, San Diego, University of Alabama Birmingham, University of Washington, Fenway Health, Johns Hopkins University, University of California, San Francisco.

The original data set was created with 2680 patients who reported retention data and responded to at least 75% of the 10 Index items. Our dominance analysis required responses to all 10 items and was reduced to 2406 patients.