Table 1.

Patient and provider characteristics for groups participating or not participating in the CWC initiative

PARTICIPATING IN CWC INITIATIVE*TOTAL, N
NO, N (%)YES, N (%)
Patient characteristics
Patients100 593 (100.0)50 351 (100.0)150 944
Age, y
  • 18–3021 330 (21.2)10 329 (20.5)31 659
  • 31–4014 881 (14.8)7762 (15.4)22 643
  • 41–5018 242 (18.1)9738 (19.3)27 980
  • 51–6020 595 (20.5)9578 (19.0)30 173
  • 61–7013 872 (13.8)6865 (13.6)20 737
  • 71–807487 (7.4)3634 (7.2)11 121
  • ≥ 814186 (4.2)2445 (4.9)6631
Sex
  • Missing8 (0.0)3 (0.0)11
  • Female47 578 (47.3)27 176 (54.0)74 754
  • Male53 007 (52.7)23 172 (46.0)76 179
Depression
  • No91 240 (90.7)45 247 (89.9)136 487
  • Yes9353 (9.3)5104 (10.1)14 457
Dementia
  • No98 865 (98.3)49 095 (97.5)147 960
  • Yes1728 (1.7)1256 (2.5)2984
Rheumatoid arthritis
  • No100 062(99.5)50 027 (99.4)150 089
  • Yes531 (0.5)324 (0.6)855
Encounters
  • 1–443 640 (43.4)25 375 (50.4)69 015
  • 5–929 056 (28.9)14 964 (29.7)44 020
  • ≥ 1027 897 (27.7)10 012 (19.9)37 909
Comorbidities
  • 061 049 (60.7)32 584 (64.7)93 633
  • 124 606 (24.5)11 866 (23.6)36 472
  • 210 407 (10.4)4264 (8.5)14 671
  • 33520 (3.5)1290 (2.6)4810
  • ≥ 41011 (1.0)347 (0.7)1358
Obesity
  • No77 946 (77.5)39 731 (78.9)117 677
  • Yes22 647 (22.5)10 620 (21.1)33 267
Provider characteristics
Physicians233 (100.0)119 (100.0)352
Provider sex
  • Female125 (53.6)78 (65.6)203
  • Male108 (46.4)41 (34.5)149
Provider age, y
  • Missing23 (9.9)6 (5.0)29
  • 29–4584 (36.1)54 (45.4)138
  • 46–6076 (32.6)38 (31.9)114
  • ≥ 6150 (21.5)21 (17.6)71
Years in practice
  • Missing3 (1.3)0 (0.0)3
  • 1–1050 (21.5)28 (23.5)78
  • 11–2047 (20.2)40 (33.6)87
  • 21–3055 (23.6)17 (14.3)72
  • ≥ 3178 (33.5)34 (28.6)112
  • CWC—Choosing Wisely Canada.

  • * Some percentages do not add to 100% owing to rounding.

  • Comorbidities include hypertension, diabetes, depression, osteoarthritis, dementia, chronic obstructive pulmonary disease, Parkinson disease, and epilepsy.