Table 2—

Incidence rates (per 100,000 person-years) among diabetic and nondiabetic populations (clustering within 1 year of diagnosis)

Age-group (years)	TB patients with diabetes (n)	Incidence rate of TB among diabetic population	TB patients without diabetes (n)	Incidence rate of TB among nondiabetic population	Ratio of rates (95% CI)	P	Population attributable risk (%)
Clustered cases
20–44	18	127.3	62	6.9	18.6 (10.3–31.8)	<0.0001	21
45–64	15	39.3	25	8.0	4.9 (2.4–9.6)	<0.0001	29
65–89	9	30.2	12	10.1	3.0 (1.1–7.8)	0.01	28
Total	42	51.2	99	7.4	6.9 (4.7–9.9)	<0.0001	25
Reactivated cases
20–44	25	176.8	192	21.2	8.3 (5.3–12.7)	<0.0001	10
45–64	78	204.1	75	24.1	8.5 (6.0–11.8)	<0.0001	44
65–89	27	90.7	43	36.1	2.5 (1.5–4.2)	0.0004	23
Total	130	158.3	310	23.2	6.8 (5.5–8.4)	<0.0001	25
Total cases
20–44	43	304.2	254	28.1	10.8 (7.6–14.9)	<0.0001	13
45–64	93	243.4	100	32.2	7.6 (5.6–10.1)	<0.0001	41
65–89	36	121.0	55	46.2	2.6 (1.7–4.0)	<0.0001	24
Total	172	209.5	409	30.7	6.8 (5.7–8.2)	<0.0001	25