Table 3.

Prevalence of selected chronic diseases, Ontario 2001-2005

	Weighted prevalence N (%)*
	Health administrative data	Self-reported data	Missing(self-reported)
COPD	1 560 000 (8.1)	821 000 (4.3)	3 390 (0.0)
Asthma	2 530 000 (9.6)	2 070 000 (7.8)	7 380 (0.0)
CHF	312 000 (1.8)	185 000 (1.1)	18 200 (0.1)
AMI	221 000 (1.3)	449 000 (2.6)	14 200 (0.1)
Hypertension	5 840 000 (22.1)	4 410 000 (16.7)	39 500 (0.2)
Diabetes	1 890 000 (7.2)	1 440 000 (5.4)	12 700 (0.1)
Stroke	177 000 (0.7)	333 000 (1.3)	3 390 (0.0)

*Population estimated using the Canadian Community Health Survey sampling weights.

Abbreviations: AMI = acute myocardial infarction; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease.