Table 3.

Associations between HIV sero-conversion and regular sex partners’ behavioral characteristic among HIV seronegative MSM having regular sex partners over past 3 months. (N=890^*, n=46 seroconverters).

Factors	Persons who seroconverted	Follow-up years	Infection Rates (100 person-years)	Univariate analysis		Multivariable analysis
				Crude HR (95%CI)**	P value	Adjusted HR (95%CI)**	P value
Type of regular partners
Boyfriend	14	764.8	1.83	ref.		ref.
Steady but not committed***	32	557.9	5.74	3.16 (1.69–5.92)	0.001	3.31 (1.73–6.36)	<0.001
Number of regular partners over the past 3 months
1	31	1022.6	3.03	ref.
≥2	15	297.9	5.04	1.69 (0.91–3.13)	0.096
Having unprotected anal intercourse with regular partners over past 3 months
No	18	800.9	2.25	ref.		ref.
Yes	25	455.9	5.48	2.43 (1.33–4.46)	0.004	2.61 (1.42–4.80)	0.001

^*Cumulative number of men who reported having regular partners and not lost to follow-up. Numbers may not add to the total due to missing data or skipped questions. All data are from the latest survey.

^**HR=hazard ratio, 95%CI=95% confidence interval

^***”Friends with benefits” or “4N9” as it is known locally, mostly means having stable sexual relationship without emotionally invested.