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. 2021 Apr 16;9(2):E376–E383. doi: 10.9778/cmajo.20200183

Table 2:

Patient characteristics

Characteristic No. (%) of patients*
Overall
n = 311
Heart failure
n = 72
No heart failure
n = 239
Female 198 (63.7) 42 (58.3) 156 (65.3)
Age, mean (SD) 73.2 (13.6) 83.6 (10.9) 70.0 (12.8)
Age, yr
 35–< 50 19 (6.1) 0 (0.0) 19 (7.9)
 50–75 162 (52.1) 17 (23.6) 145 (60.7)
 > 75 130 (41.8) 55 (76.4) 75 (31.4)
Clinic
 A (urban) 130 (41.8) 40 (30.8) 90 (69.2)
 B (rural) 117 (37.6) 24 (20.5) 93 (79.5)
 C (urban) 64 (20.6) 8 (12.5) 56 (87.5)
Other validated CPCSSN chronic conditions
 Chronic kidney disease 28 (9.0) 12 (16.7) 16 (6.7)
 Dementia 30 (9.6) 16 (22.2) 14 (5.9)
 Depression 125 (40.2) 26 (36.1) 99 (41.4)
 Diabetes 69 (22.2) 26 (36.1) 43 (18.0)
 Hypertension 178 (57.2) 52 (72.2) 126 (52.7)
 Osteoarthritis 116 (37.3) 33 (45.8) 83 (34.7)
No. of comorbid conditions
 1 45 (14.5) 7 (9.7) 38 (15.9)
 2 84 (27.0) 11 (15.3) 73 (30.5)
 3 94 (30.2) 20 (27.8) 74 (31.0)
 ≥ 4 88 (28.3) 34 (47.2) 54 (22.6)

Note: CPCSSN = Canadian Primary Care Sentinel Surveillance Network, SD = standard deviation.

*

Unless indicated otherwise.

All patients had COPD, so each was classified as having at least 1 comorbid condition. Conditions were limited to those for which the CPCSSN has validated algorithms: chronic kidney disease, dementia, depression, diabetes, herpes zoster, hypertension and osteoarthritis; epilepsy and Parkinson disease were not included because n < 5 for both conditions.