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Table 3 Prevalence of selected chronic diseases, Ontario 2001-2005

From: Ascertainment of chronic diseases using population health data: a comparison of health administrative data and patient self-report

  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)
  1. *Population estimated using the Canadian Community Health Survey sampling weights.
  2. Abbreviations: AMI = acute myocardial infarction; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease.