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Table 1 Baseline characteristics of adults, aged 18 years and older, with at least one priority chronic condition, by burden of multimorbidity (Ontario, Canada, April 1, 2009)

From: The association between multimorbidity and hospitalization is modified by individual demographics and physician continuity of care: a retrospective cohort study

  Number of priority chronic conditions at baseline  
1 2 3 4 5+ Total
Number of Individualsa 2844033 (47.7) 1548197 (26.0) 812429 (13.6) 405766 (6.8) 348089 (5.8) 5958514 (100)
Age (in years), mean (SD) 44.9 (15.8) 54.5 (16.2) 62.4 (14.9) 69.0 (13.5) 73.6 (11.9) 53.0 (18.0)
Age Groups, N (%)       
 <65 years 2523875 (88.7) 1124098 (72.6) 440940 (54.3) 157162 (38.7) 78049 (22.4) 4324124 (72.6)
 ≥65 years 320158 (11.3) 424099 (27.4) 371489 (45.7) 248604 (61.3) 270040 (77.6) 1634390 (27.4)
Female, N (%) 1477561 (52.0) 872671 (56.4) 472030 (58.1) 234217 (57.7) 194732 (55.9) 3251211 (54.6)
Prevalence of Each Priority Condition, N (%)
 Osteoarthritis 785297 (27.6) 777387 (50.2) 523568 (64.4) 289806 (71.4) 269393 (77.4) 2645451 (44.4)
 Rheumatoid arthritis 11447 (0.4) 30963 (2.0) 34028 (4.2) 25879 (6.4) 32116 (9.3) 134433 (2.3)
 Cancer 197688 (7.0) 226464 (14.6) 181622 (22.4) 116682 (28.8) 122160 (35.1) 844616 (14.2)
 Arrhythmia 26284 (0.9) 44264 (2.7) 57281 (7.1) 59136 (14.6) 116922 (33.6) 303887 (5.1)
 Dementia 8695 (0.3) 20556 (1.3) 29767 (3.7) 30878 (7.6) 58159 (16.7) 148055 (2.5)
 Mood disorders 470962 (16.6) 401028 (25.9) 233008 (28.7) 125289 (30.9) 119660 (34.4) 1349947 (22.7)
 Osteoporosis 41424 (1.5) 72486 (4.7) 70425 (8.7) 48836 (12.0) 52837 (15.2) 286008 (4.8)
 Renal disease 5581 (0.2) 16568 (1.1) 27301 (3.4) 29958 (7.4) 68164 (19.6) 147572 (2.5)
 Stroke 5549 (0.2) 15923 (1.0) 25059 (3.1) 26025 (6.4) 50319 (14.5) 122875 (2.1)
 Coronary artery disease 33552 (1.2) 99472 (6.4) 147047 (18.1) 139099 (34.3) 205730 (59.1) 624900 (10.5)
 Asthma 515746 (18.1) 323609 (20.9) 190172 (23.4) 112921 (27.8) 130775 (37.6) 1273223 (21.4)
 Congestive heart failure 2309 (0.1) 10806 (0.7) 27568 (3.4) 44045 (10.9) 131444 (37.8) 216172 (3.6)
 Chronic obstructive pulmonary disease 13215 (0.5) 33266 (2.2) 49300 (6.1) 52272 (12.9) 108959 (31.3) 257012 (4.3)
 Hypertension 573702 (20.2) 756405 (48.7) 585695 (72.1) 346365 (85.4) 326183 (93.7) 2588350 (43.4)
 Diabetes mellitus 152497 (5.4) 266126 (17.2) 253328 (31.2) 173209 (42.7) 190688 (54.8) 1035848 (17.4)
 Acute myocardial infarction 85 (0.0) 1071 (0.1) 2118 (0.3) 2664 (0.7) 7093 (2.0) 13031 (0.2)
Primary Care Practice Model,b N (%)  
 Non-capitated 1921317 (67.6) 1020886 (65.9) 535298 (65.9) 267574 (65.9) 231673 (66.6) 3976748 (66.7)
 Capitated 442850 (15.6) 258985 (16.7) 137301 (16.9) 68569 (16.9) 58198 (16.2) 965903 (16.2)
 Capitated+ 479866 (16.9) 268326 (17.3) 139830 (17.2) 69623 (17.2) 58218 (16.7) 1015863 (17.1)
Continuity of Carec  
 Mean (SD) 0.6 (0.3) 0.7 (0.3) 0.7 (0.3) 0.7 (0.3) 0.6 (0.3) 0.6 (0.3)
 Median (Q1-Q3) 0.5 (0.3–0.8) 0.5 (0.3–0.8) 0.5 (0.3–0.8) 0.5 (0.3–0.8) 0.5 (0.3–0.7) 0.5 (0.3–0.8)
 High (>0.52), N (%) 1244438 (43.8) 802231 (51.8) 430849 (53.0) 203662 (50.2) 147651 (42.4) 2828831 (47.5)
 Low (<=0.52), N (%) 1599595 (56.2) 745966 (48.2) 381580 (47.0) 202104 (49.8) 200438 (57.6) 3129683 (52.5)
  1. aParentheses show row percent
  2. bPrimary care practice models defined as: non-capitated models include non-rostered models and those that operate on a fee-for-service basis; capitated models include family health networks and family health organizations operating on a age-sex adjusted capitation funding scheme; and the capitated + models include family health teams and other rostered models operating on a capitated funding scheme with additional incentives for interdisciplinary care
  3. cCalculated using the Bice Concentration of Care Index