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Table 1 Demographic and clinical characteristics of participants (N = 140)

From: Mediating effect of self-efficacy on the relationship between social support and self-management behaviors among patients with knee osteoarthritis: a cross-sectional study

Variable n % Mean SD Range
Age, years    70.21 10.84 29–96
Gender      
  Male 37 26.4    
  Female 103 73.6    
BMI, kg/m2    25.37 4.11 14.8–36.5
Education      
  ≤ Elementary school 46 32.8    
  Junior/Senior High school 70 50.0    
  College or above 24 17.2    
Disease duration (years)    5.94 5.54 0.1–30
Other chronic diseases      
  No 40 28.6    
  Yes 100 71.4    
Taking analgesics      
  No 78 55.7    
  Yes 62 44.3    
Physical therapy      
  No 84 60    
  Yes 56 40    
Intra-articular injection      
  No 12 8.6    
  Yes 128 91.4    
Knee joint surgery      
  No 90 64.3    
  Yes 50 35.7    
Disease severity (K-L GS)    2.52 0.81 1–4
  Level 1 9 6.4    
  Level 2 68 48.6    
  Level 3 44 31.4    
  Level 4 19 13.6    
  1. SD standard deviation, BMI Body Mass Index, K-L GS Kellgren-Lawrence Grading Scale