Table 3:

HIV incidence and crude and adjusted HIV incidence rate ratios by migrant and resident status among women and men

Resident Status	No of events/ py* at risk	Incidence rate per 100 py (95%CI)	Crude IRR (95% CI)	Demographics only adjIRR (95%)	Demographics+sexual behaviors adjIRR (95% CI)
Women (N=8,326)
Permanent residents	315/33730	0.93 (0.84, 1.04)	Ref.	Ref.	Ref.
In-migrants (time since arrival)
0–2 years	70/3646	1.92 (1.52, 2.43)	2.04 (1.58, 2.63)	1.75 (1.33, 2.33)	2.35 (1.61, 3.42)
> 2 years	102/11703	0.87 (0.72, 1.06)	0.93 (0.75, 1.16)	0.94 (0.74, 1.19)	0.99 (0.69, 1.42)
Men (N= 6,861)
Permanent residents	283/33849	0.84 (0.74, 0.94)	Ref.	Ref.	Ref.
In-migrants (time since arrival)
0–2 years	21/1384	1.52 (0.99, 2.33)	1.81 (1.17, 2.81)	1.74 (1.12, 2.71)	1.89 (1.12, 3.19)
> 2 years	50/4980	1.00 (0.76, 1.32)	1.20 (0.89, 1.62)	1.28 (0.94, 1.74)	1.25 (0.84, 1.87)
Women and Men (N=15,187)
Permanent residents	598/67579	0.88 (0.82, 0.96)	Ref.	Ref.	Ref.
In-migrants (time since arrival)
0–2 years	91/5031	1.81 (1.47, 2.22)	2.03 (1.64, 2.53)	1.76 (1.40, 2.23)	2.10 (1.56, 2.83)
> 2 years	152/16682	0.91 (0.78, 1.07)	1.02 (0.86, 1.23)	1.00 (0.83, 1.21)	1.03 (0.79, 1.35)

IRR=incidence rate ratio; adjIRR=adjusted incidence rate ratio.

^*person-years;

^**no migration history. Model adjusted for demographics included the following variables in addition to migration history: age in years, marital status, education, religion, time period, occupation and ma le circumcision; Models adjusted for sexual behaviors included sex with partners residing outside community in the past year, number of different sexual partners in the past year, number of lifetime sexual partner, number of non-marital partners, consistent condom use with a non-marital partner and alcohol use with sex; Bolded estimates are statistically significant at p < 0.05