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Tuberculosis in Canada: 2002 pre-release

To facilitate an earlier release of key national tuberculosis (TB) data, the following tables have been extracted from the Canadian Tuberculosis Reporting System (CTBRS) for the year 2002. Data included in this pre-release report should be considered provisional until publication of the full report, Tuberculosis in Canada 2002.

Highlights

In 2002, 1555 cases (5.0 per 100,000) of new active and relapsed TB were reported to the CTBRS. The highest rate, of 31.4 per 100,000, was reported in the North region (Yukon Territory, Northwest Territories and Nunavut). TB incidence was lowest in the Atlantic region (Nova Scotia, New Brunswick, Prince Edward Island, Newfoundland and Labrador: 1.1 per 100,000). The three most populous provinces (Ontario, Quebec and British Columbia), which collectively make up 75% of Canada's population, accounted for 75% of the total number of reported cases (Table 1).

By age group, individuals between the ages of 25 and 34 years made up the largest number of reported cases, accounting for 18% of the total (Table 2).

Accurate information on country of origin of TB cases in Canada has been available since 1970. In 2002, TB among foreign-born individuals accounted for 66% of all reported cases in Canada. Canadian-born non-Aboriginal and Canadian-born Aboriginal cases made up 16% and 15% respectively of the reported cases. Birthplace was unknown for 3% of cases (Table 3).

Respiratory TB was the most frequently reported main diagnostic site, representing 66% of reported cases in 2002 (Table 4). TB of the peripheral lymph nodes accounted for 14% of the cases and was the second most commonly reported diagnostic site. Diagnostic site varied by birthplace. The majority of peripheral lymph node cases were in foreign-born individuals from the Western Pacific Region (Table 5).

Acknowledgements

The authors would like to acknowledge the provincial/territorial Tuberculosis Programs and their teams for their contribution to and participation in the CTBRS.

Source: M Allegakone, Tuberculosis Database Manager, M Phypers, Senior Epidemiologist, Tuberculosis Prevention and Control, Centre for Infectious Disease Prevention and Control, Health Canada. This report can also be accessed on the Internet at <http://www.phac-aspc.gc.ca/>.

Table 1. Reported new active and relapsed tuberculosis cases and incidence rates per 100,000 - Canada and provinces/territories: 1992-2002

Year of diagnosis	Province/territory
Year of diagnosis		CANADA	Atlantic	Quebec	Ontario	Manitoba	Saskat- chewan	Alberta	British Columbia	North
1992	Cases	2108	68	424	822	86	133	222	323	30
1992	Rate	7.4	2.8	5.9	7.7	7.7	13.2	8.4	9.3	32.3
1993	Cases	2012	99	352	769	108	153	156	337	38
1993	Rate	7.0	4.1	4.9	7.1	9.6	15.1	5.8	9.4	40.4
1994	Cases	2074	42	361	831	116	147	178	324	75
1994	Rate	7.1	1.7	5.0	7.6	10.3	14.5	6.6	8.8	79.4
1995	Cases	1931	34	380	766	108	155	126	308	54
1995	Rate	6.5	1.4	5.2	6.9	9.5	15.3	4.6	8.2	56.2
1996	Cases	1868	57	332	771	97	113	140	316	42
1996	Rate	6.3	2.4	4.6	6.9	8.6	11.1	5.0	8.1	42.2
1997	Cases	1976	34	360	761	96	121	166	405	33
1997	Rate	6.6	1.4	4.9	6.8	8.4	11.8	5.8	10.2	33.0
1998	Cases	1791	37	289	724	116	98	158	329	40
1998	Rate	5.9	1.6	3.9	6.3	10.1	9.5	5.4	8.2	39.9
1999	Cases	1806	44	314	684	132	116	149	328	39
1999	Rate	5.9	1.9	4.3	5.9	11.5	11.3	5.0	8.1	39.2
2000	Cases	1694	25	318	670	98	104	133	285	61
2000	Rate	5.5	1.0	4.3	5.7	8.5	10.1	4.4	7.0	61.1
2001	Cases	1703	40	259	634	115	114	116	379	46
2001	Rate	5.5	1.7	3.5	5.3	10.0	11.2	3.8	9.3	47.5
2002	Cases	1555	25	282	618	98	89	128	284	31
2002	Rate*	5.0	1.1	3.8	5.1	8.5	8.8	4.1	6.9	31.4
* Data and rates for 2002 are provisional until publication of the Tuberculosis in Canada, 2002 Annual Report

Table 2. Reported new active and relapsed tuberculosis cases and incidence rates per 100,000 by age group - Canada: 1992-2002

Year of diagnosis			Age group
		TOTAL	< 1	1-4	5-14	15-24	25-34	35-44	45-54	55-64	65-74	75+	Age Unk.
1992	Cases	2108	25	83	85	242	405	286	191	224	276	290	1
1992	Rate	7.4	6.2	5.3	2.2	6.0	7.9	6.2	6.0	9.2	14.0	21.8	-
1993	Cases	2012	26	69	108	234	386	270	210	214	257	237	1
1993	Rate	7.0	6.6	4.3	2.7	5.8	7.6	5.7	6.2	8.7	12.7	17.3	-
1994	Cases	2074	20	72	98	274	411	261	224	212	271	231	-
1994	Rate	7.1	5.2	4.5	2.5	6.8	8.2	5.4	6.4	8.5	13.2	16.4	-
1995	Cases	1931	27	64	85	229	325	314	201	209	251	225	1
1995	Rate	6.5	7.1	4.0	2.1	5.7	6.6	6.4	5.5	8.3	12.0	15.3	-
1996	Cases	1868	11	68	63	214	356	304	191	193	250	218	-
1996	Rate	6.3	2.9	4.3	1.6	5.3	7.5	6.1	5.0	7.6	12.0	14.6	-
1997	Cases	1976	9	50	58	214	385	292	216	227	246	279	-
1997	Rate	6.6	2.5	3.2	1.4	5.3	8.2	5.7	5.5	8.8	11.7	18.0	-
1998	Cases	1791	19	61	71	186	307	302	180	171	235	259	-
1998	Rate	5.9	3.6	4.0	1.7	4.5	6.7	5.8	4.4	6.4	11.0	16.1	-
1999	Cases	1806	27	59	63	200	329	260	187	181	236	264	-
1999	Rate	5.9	7.9	4.0	1.5	4.8	7.4	4.9	4.4	6.6	11.1	15.9	-
2000	Cases	1695	10	56	42	206	308	277	204	150	199	243	-
2000	Rate	5.5	2.9	3.5	1.0	5.0	7.0	5.2	4.7	5.3	9.3	14.2	-
2001	Cases	1703	7	34	70	164	315	274	202	175	213	249	-
2001	Rate	5.5	2.1	2.4	1.7	3.9	7.2	5.2	4.5	6.0	9.9	14.1	-
2002	Cases	1555	7	44	40	195	286	248	193	154	189	199	-
2002	Rate*	5.0	2.2	3.2	1.0	4.7	6.5	4.7	4.2	5.0	8.8	10.9	-
* Data and rates for 2002 are provisional until publication of the Tuberculosis in Canada, 2002 Annual Report.

Table 3. Reported new active and relapsed tuberculosis cases by birthplace - Canada and provinces/territories: 2002*

Birthplace			Province/territory
Birthplace		CANADA	Atlantic	Quebec	Ontario	Manitoba	Saskat- chewan	Alberta	British Columbia	North
Canadian- born	Aboriginal Status Indian Non-Status Indian/ Metis Inuit	159 44 32	2 1 3	- 3 2	10 - -	43 3 -	53 29 -	18 3 -	33 3 -	- 2 27
	Total	235	6	5	10	46	82	21	36	29
	Non-Aboriginal	249	14	93	59	19	3	14	47	-
	Total	484	20	98	69	65	85	35	83	29
Foreign- Born (WHO Region)	Africa	106	1	30	54	9	1	6	5	-
	Americas	62	-	29	29	-	-	2	2	-
	East Mediter- ranean	109	-	18	69	-	-	14	8	-
	Europe	89	-	14	50	1	2	8	14	-
	South East Asia	194	3	15	112	3	-	14	47	-
	Western Pacific	431	-	43	202	19	16	49	115	2
	Unknown Region	33	-	15	18	-	-	-	-	-
	Total	1024	4	164	534	32	4	93	191	2
Unkown Birthplace		47	1	20	15	1	-	-	10	-
TOTAL		1555	25	282	618	98	89	128	284	31
* These data are provisional until publication of the Tuberculosis in Canada, 2002 Annual Report.

Table 4. Reported new active and relapsed tuberculosis cases and incidence rates per 100,000 by main diagnostic site - Canada: 1992-2002

Main diagnostic site		Year of diagnosis
		1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002*
Primary	Cases	193	189	152	163	120	131	130	155	101	114	81
	Rate	0.7	0.7	0.5	0.6	0.4	0.4	0.4	0.5	0.3	0.4	0.3
Miliary	Cases	60	58	65	48	57	73	41	38	40	42	50
	Rate	0.2	0.2	0.2	0.2	0.2	0.2	0.1	0.1	0.1	0.1	0.2
Respiratory**	Cases	1351	1260	1325	1244	1155	1230	1150	1171	1138	1124	1019
	Rate	4.7	4.4	4.5	4.2	3.9	4.1	3.8	3.8	3.7	3.6	3.3
Central nervous system	Cases	17	19	18	22	19	25	24	15	15	14	18
	Rate	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	-	0.1
Peripheral lymph node	Cases	259	281	301	249	242	266	271	239	254	222	220
	Rate	0.9	1.0	1.0	0.8	0.8	0.9	0.9	0.8	0.8	0.7	0.7
Other sites^†	Cases	220	202	206	199	263	248	165	180	144	186	167
	Rate	0.8	0.7	0.7	0.7	0.9	0.8	0.5	0.6	0.5	0.6	0.5
Unknown	Cases	8	3	7	6	12	3	10	8	2	1	-
	Rate	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	-
TOTAL	Cases	2108	2012	2074	1931	1868	1976	1791	1806	1694	1703	1555
	Rate	7.4	7.0	7.1	6.5	6.3	6.6	5.9	5.9	5.5	5.5	5.0
* Data and rates for 2002 are provisional until publication of the Tuberculosis in Canada, 2002 Annual Report. ** Respiratory includes pulmonary (with or without silicosis), pleurisy and other respiratory. † Other sites include abdominal, bones and joints, genitourinary and other non-respiratory.

Table 5. Reported new active and relapsed tuberculosis cases by birthplace and main diagnostic site - Canada: 2002*

Birthplace		TOTAL	Main diagnostic site
Birthplace		TOTAL	Primary	Miliary/ Dissem- inated	Respiratory (pulm/other resp)*	Meninges and CNS	Peripheral Lymph Node	Other Sites**	Unknown
Canadian- born	Aboriginal Status Indian Non-Status Indian/ Metis Inuit	159 44 32	32 8 9	10 - -	89 26 23	2 - -	12 6 -	14 4 -	- - -
Canadian- born	Total	235	49	10	138	2	18	18	-
	Non-Aboriginal	249	11	6	191	3	14	24	-
	Total	484	60	16	329	5	32	42	-
Foreign- Born (WHO Region)	Africa	106	3	6	69	1	14	13	-
	Americas	62	2	4	42	-	11	3	-
	East Mediter- ranean	109	2	1	64	2	24	16	-
	Europe	89	2	3	67	1	5	11	-
	South East Asia	194	1	6	124	4	37	22	-
	Western Pacific	431	8	12	280	3	87	41	-
	Unknown Region	33	3	1	20	-	5	4	-
	Total	1024	21	33	666	11	183	110	-
Unkown Birthplace		47	-	1	24	2	5	15	-
TOTAL		1555	81	50	1019	18	220	167	-
* These data are provisional until publication of the Tuberculosis in Canada, 2002 Annual Report. ** Respiratory includes pulmonary (with or without silicosis), pleurisy and other respiratory. Other sites include abdominal, bones and joints, genitourinary and other non-respiratory.

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