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. Author manuscript; available in PMC: 2021 Jan 6.
Published in final edited form as: Osteoarthritis Cartilage. 2020 Nov 18;29(1):39–49. doi: 10.1016/j.joca.2020.11.001

Table V. Relative risks (RR) for not adhering to ten or more exercise sessions during an exercise therapy and education program for individuals with comorbidities compared to individuals without comorbidities.

Attending <10 exercise sessions, n (%) Unadjusted RR (95% CI) Adjusted* RR (95% CI)
No comor, n=12,128 2,161 (18) 1 (reference) 1 (reference)
HT, n=5,716 925 (16) 0.91 (0.85 to 0.97) 1.02 (0.95 to 1.09)
HT + DM, n=729 85 (12) 0.65 (0.53 to 0.80) 0.74 (0.61 to 0.91)
HT + HD, n=630 100 (16) 0.89 (0.74 to 1.07) 1.06 (0.88 to 1.27)
Resp, n=558 94 (17) 0.94 (0.78 to 1.14) 1.02 (0.85 to 1.23)
HD, n=551 74 (13) 0.75 (0.61 to 0.94) 0.88 (0.71 to 1.09)
Neu, n=508 95 (19) 1.05 (0.87 to 1.26) 1.06 (0.88 to 1.28)
RA, n=501 95 (19) 1.06 (0.88 to 1.28) 1.09 (0.91 to 1.31)
Ulcer, n=447 82 (18) 1.03 (0.85 to 1.326) 1.03 (0.85 to 1.26)
Dep, n=408 106 (26) 1.46 (1.23 to 1.73) 1.32 (1.11 to 1.57)
DM, n=358 80 (22) 1.26 (1.03 to 1.53) 1.36 (1.12 to 1.65)
HT + Resp, n=323 55 (17) 0.96 (0.75 to 1.22) 1.16 (0.92 to 1.46)
HT + RA, n=275 56 (20) 1.15 (0.90 to 1.45) 1.27 (1.01 to 1.60)
HT + Neu, n=274 56 (20) 1.14 (0.90 to 1.45) 1.27 (1.00 to 1.60)
HT + Ulcer, n=254 34 (13) 0.75 (0.55 to 1.03) 0.89 (0.66 to 1.21)
Cancer, n=234 38 (16) 0.91 (0.68 to 1.22) 1.01 (0.76 to 1.35)
HT + Dep, n=203 61 (30) 1.69 (1.37 to 2.09) 1.75 (1.41 to 2.17)
HT + Cancer, n=137 9 (7) 0.37 (0.20 to 0.70) 0.45 (0.24 to 0.84)
HT + HD + DM, n=117 23 (20) 1.10 (0.76 to 1.59) 1.30 (0.92 to 1.86)
Anemia, n=83 15 (18) 1.01 (0.64 to 1.60) 1.09 (0.69 to 1.71)
HT + Ren/Liv. n=79 9 (11) 0.64 (0.34 to 1.18) 0.70 (0.38 to 1.29)
       
Number of comorbidities
1 comorbidity, n=9,441 1,575 (17) 0.93 (0.87 to 0.98) 1.01 (0.95 to 1.08)
2 comorbidities, n=3,838 665 (17) 0.96 (0.89 to 1.04) 1.09 (1.01 to 1.18)
3 comorbidities, n=1,173 174 (15) 0.82 (0.71 to 0.95) 0.94 (0.81 to 1.08)
≥4 comorbidities, n=392 79 (20) 1.12 (0.91 to 1.36) 1.24 (1.02 to 1.52)

n: Number, CI: Confidence interval. Comor: Comorbidities, HT: Hypertension, DM: Diabetes mellitus 1 and 2, Resp: Respiratory disease, HD: Heart disease, Neu: Neurologic disease, RA: Rheumatoid arthritis, Dep: Depression, Ren/Liv: Renal and/or liver disease.

*

Adjusted for age, sex, BMI, educational level, not born in Denmark, civil status, physical activity, problems in other joints, use of analgesics, and number of bodily pain areas. Estimates in bold reflect statistical significance (p < 0.05).