Table 3. HIV infection by year in period of follow-up.

Total	MSM	Event	Person-yr	Rate (95% CI)	RR (95% CI)
	3625	440	6208.53	7.1(6.4–7.7)
Period of follow up
≤1 year	3625	173	2810.56	6.2 (5.2–7.1)	1.00
>1 to ≤2 years	2072	115	1615.73	7.1 (5.8–8.4)	1.16 (0.91–1.46)
>2 to ≤3 years	1245	77	993.67	7.7 (6.0–9.5)	1.26 (0.96–1.65)
>3 to ≤4 years	748	46	533.23	8.6 (6.1–11.1)	1.40 (1.01–1.94)
>4 years	357	29	255.33	11.4 (7.2–15.5)	1.85 (1.25–2.73)

Rate: HIV incident rate.