Table 1.

Bivariate Survival Analyses of Demographics at Baseline by Final HIV Serostatus (n = 9,481), January 2009 - June 2014.

	HIV-negatives (n = 9,111)	HIV-positives (n = 370)	Person-Years	Number of HIV Infections per 100 Person-Years
Orientation				p = 0.87
Gay/Homosexual	7,774	319	14,573	2.19
Bisexual	1,105	44	1,963	2.24
Other	232	7	358	1.96
Race/Ethnicity				p < 0.0001
White	4,444	146	8,269	1.77
Hispanic	2,841	156	5,428	2.87
Black	708	35	1,237	2.83
Other	1,108	33	1,955	1.69
Missing	10	0	5	0.00
Age Group*				p = 0.0004
<25	2,336	118	4,192	2.81
25-29	2,338	105	4,288	2.45
30-39	2,525	97	4,711	2.06
40+	1,912	50	3,702	1.35
Total	9,111	370	16,894	2.18

^*The age range was 18-85. The mean age for the HIV-negatives at baseline was 31.7 years old, and the mean age for the HIV-positives at baseline was 29.5 years old. An independent samples t-test using the continuous age variable showed a significant difference between groups by final serostatus (p < 0.0001).