Table 2. Linear mixed models analyses to determine effect IRF1 619 genotypes have on the rate of CD4+T cell decline in Kenyan FSW cohort with baseline CD4count>350.

Baseline CD4 count	Parameter	Estimate (daily)	P value	95% Confidence Interval
				Lower	Upper
CD4>350	Follow-up (days)	−.000341	.000	−.000410	−.000273
	IRF1 619 = AA*follow-up	–1.573174E-5	.854	−.000184	.000153
	IRF1 619 = AC*follow-up	–4.424301E-5	.391	−.000146	5.728030E-5
	IRF1 619 = CC*follow-up	0a	.	.	.

^*IRF1 619 genotypes: AA (protective against HIV acquisition); AC, CC (non-protective against HIV acquisition, CC genotype was used as the reference comparison).