Table 4. Stratification analysis of consistent condom use in the past 12 months at follow-up survey among study of HIV discordant couples in rural Yunnan, China, 2009–2011.

	Condom use during the past 12 months at follow-up
	No Sex (n1 = 119)			Inconsistent Condom Use (n2 = 135)				Consistent Condom Use (n3 = 559)
	Sero- converters	Observed Time (PY)	HIV Incidence (per 100 PY)	Sero- converters	Observed Time (PY)	HIV Incidence (per 100 PY)	P-value	Sero- converters	Observed Time (PY)	HIV Incidence (per 100 PY)
ART for HIV-positive partners*
No	0	97	0.0	12	92	13.0	0.1371	0	316	0.0
Yes	0	71	0.0	5	83	6.0		0	468	0.0

PY: Person-years.

^*Only those already on ART at baseline or started ART before the midpoint were considered to be receiving ART for the purposes of stratification analyses.