Table 1– Tuberculosis incidence among permanent residents in Canada in 1986–2002

	Cases n (%)	Immigrants ×1000	Person-yrs ×10⁵	Rate^# (95% CI)	Adjusted rate^¶ (95% CI)	RR⁺ (95% CI)	p-value^§
Pre-1986 immigrants
Sex
Female	4088 (47.2)	1972.5	314.2	13.0 (12.6–13.4)	12.8 (12.4–13.2)	1.0
Male	4574 (52.8)	1888.4	297.8	15.4 (14.9–15.8)	13.9 (13.5–14.3)	1.1 (1.0–1.1)	0.0004
Age in 1986 yrs
<15	316 (3.6)	180.5	30.6	10.3 (9.2–11.5)	10.4 (9.3–11.6)	1.0
15–34	2560 (29.6)	1000.4	169.1	15.1 (14.6–15.7)	15.1 (14.6–15.7)	1.5 (1.3–1.6)	<0.0001
35–64	3714 (42.9)	2018.5	331.9	11.2 (10.8–11.6)	11.2 (10.8–11.5)	1.1 (1.0–1.2)	0.194
>64	2072 (23.9)	661.5	80.5	25.7 (24.6–26.9)	26.9 (25.8–28.0)	2.6 (2.3–2.9)	<0.0001
Sub-total	8662 (100.0)	3860.9	612.1	14.2 (13.9–14.5)	13.3 (13.0–13.6)
1986–2002 immigrants
Sex
Female	4651 (48.4)	1750.3	142.8	32.6 (31.7–33.5)	31.9 (31.0–32.9)	1.00
Male	4962 (51.6)	1686.0	137.2	36.2 (35.2–37.2)	37.5 (36.5–38.6)	1.2 (1.1–1.2)	<0.0001
Age at arrival yrs
<15	616 (6.4)	738.2	59.5	10.4 (9.6–11.2)	10.4 (9.6–11.3)	1.00
15–34	5300 (55.1)	1578.7	134.6	39.4 (38.3–40.5)	39.4 (38.4–40.5)	3.8 (3.5–4.1)	<0.0001
35–64	2723 (28.3)	993.7	77.0	35.4 (34.1–36.7)	35.4 (34.1–36.8)	3.4 (3.1–3.7)	<0.0001
>64	974 (10.1)	125.6	8.9	109.2 (102.5–116.3)	114.8 (107.9–122.1)	11.0 (10.0–12.2)	<0.0001
Sub-total	9613 (100.0)	3436.3	279.9	34.3 (33.7–35.0)	34.3 (33.7–35.0)
Total	18275		892.0	20.5 (20.2–20.8)	19.9 (19.6–20.2)

RR: rate ratio. ^#: incidence rate per 100,000 person-yrs; ^¶: rates per 100,000 person-yrs were standardised to the distribution of the 1986–2002 immigrant population; rates were age-adjusted for the characteristic “sex”, sex-adjusted for the characteristics “age in 1986” (pre-1986 immigrants) and “age at arrival” (1986–2002 immigrants), and age-sex-adjusted for the subtotals and total; ⁺: adjusted rates were used for incidence RR calculations; ^§: two-sided.