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Table 3 Factors associated with compliance with the exercise recommendations of experts on osteoarthritisa

From: Physical activity status by pain severity in patients with knee osteoarthritis: a nationwide study in Korea

  Univariable analyses Multivariable analysesb
OR 95% CI OR 95% CI
Sex
 Male reference reference
 Female 0.8 0.57 1.24 1.0 0.55 1.64
Age
 50–59 years reference reference
 60–69 years 1.0 0.62 1.60 1.0 0.61 1.77
  ≥ 70 years 0.6 0.38 0.96 0.7 0.38 1.20
Monthly household income
 Low reference reference
 Low to moderate 1.2 0.86 1.80 1.2 0.76 1.77
 Moderate to high 0.8 0.47 1.35 0.6 0.34 1.14
 High 1.3 0.80 2.11 1.1 0.61 1.90
Education level
  ≤ Elementary school reference reference
 Middle school 1.2 0.73 1.85 0.8 0.48 1.48
 High school 1.3 0.76 2.30 1.2 0.64 2.33
  ≥ College 2.1 0.80 5.30 1.9 0.67 5.51
Marital status
 With spouse reference reference
 Without spouse 1.6 1.16 2.24 1.3 0.90 2.00
Depressive mood
 No reference    reference   
 Yes 1.3 0.89 1.81 1.5 0.98 2.19
Body mass index
  > 25 kg/m2 reference reference
  ≤ 25 kg/m2 1.1 0.79 1.54 1.0 0.71 1.46
Cigarette smoking
 Nonsmoker reference reference
 Smoker 0.6 0.33 1.20 0.6 0.26 1.18
Alcohol consumption
 Never reference reference
 Low 0.7 0.50 1.09 0.7 0.46 1.09
 Moderate 1.6 1.05 2.53 1.3 0.78 2.27
 Excessive 2.0 1.17 3.52 1.6 0.77 3.16
Knee pain severity
 None to mild reference reference
 Moderate 1.0 0.63 1.69 0.9 0.53 1.59
 Severe 0.8 0.51 1.34 0.8 0.48 1.39
Number of comorbidities
 0 reference reference
 1 0.9 0.61 1.31 0.9 0.59 1.37
 2 0.9 0.60 1.38 0.8 0.50 1.29
  ≥ 3 0.6 0.34 1.01 0.5 0.27 0.94
  1. Pain severity was categorized using numerical rating scale: 0–3 = none to mild pain, 4–6 = moderate pain, and 7–10 = severe pain
  2. OR Odds ratio, CI Confidence interval
  3. aPerformance of 30 min of moderate-intensity (50–70% maximal heart rate) physical activity or exercise at least 3 days a week
  4. bThe model included sex, age, monthly household income, education level, marital status, depressed mood, body mass index, cigarette smoking, alcohol consumption, knee pain severity, and number of comorbidities