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Table 1 Population-based prevalence of multimorbidity in Ontario, by number of common chronic conditions * , age group and year

From: The increasing burden and complexity of multimorbidity

2003
Age groups Ontario Population Prevalence of at least one chronic condition Prevalence of multimorbidity, by degree of multimorbidity
Prevalence of multimorbidity, 2+ conditions 2 3 4 5 + conditions
0-17 2 794 680 23.2 1.4 1.4 0.1 0.01 0.001
18-44 4 928 716 31.6 7.4 6.0 1.2 0.2 0.05
45-54 1 753 264 51.5 20.4 13.8 4.7 1.4 0.5
55-64 1 213 587 67.6 35.3 20.6 9.3 3.5 1.8
65-74 839 869 82.3 53.6 25.9 15.3 7.3 5.1
75-89 657 855 89.9 68.3 25.7 19.7 11.9 11.0
90+ 54 302 93.7 74.6 24.7 20.8 14.3 14.8
All 12 242 273 43.0 17.4 10.0 4.3 1.8 1.3
2009
Age groups Ontario Population Prevalence of at least one chronic condition Prevalence of multimorbidity, by degree of multimorbidity
Prevalence of multimorbidity, 2+ conditions 2 3 4 5 + conditions
0-17 2 732 548 24.9 2.2 2.0 0.2 0.01 0.001
18-44 4 951 761 38.6 10.6 8.2 1.9 0.4 0.1
45-54 2 065 338 60.0 27.4 17.2 6.9 2.3 1.0
55-64 1 527 927 76.6 46.6 23.8 13.4 5.9 3.5
65-74 941 352 88.9 66.4 26.1 19.8 11.3 9.2
75-89 775 760 94.0 80.9 21.4 22.0 16.6 20.9
90+ 74 159 92.4 83.2 17.1 20.0 18.2 27.8
All 13 068 845 50.8 24.3 12.3 6.2 3.1 2.7
  1. *Arthritis (excluding rheumatoid arthritis), hypertension, asthma, depression, diabetes, cancer, chronic coronary syndrome (CCS), cardiac arrhythmia, osteoporosis, chronic obstructive pulmonary disease (COPD), congestive heart failure (CHF), renal failure, dementia, rheumatoid arthritis, stroke and acute myocardial infarction (AMI).