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Table 2 Demographic characteristics of the sample by hand osteoarthritis status

From: The relationship between hand osteoarthritis and serum leptin concentration in participants of the Third National Health and Nutrition Examination Survey

  Symptomatic hand OA Asymptomatic hand OA No hand OA
Age    
   60 to 69 years 41 (45%) 138 (45%) 309 (58%)
   70 to 79 years 35 (46%) 140 (39%) 169 (28%)
   80+ years 14 (9%) 98 (17%) 112 (15%)
Sex    
   Male 36 (34%) 159 (37%) 315 (49%)
   Female 54 (66%) 217 (63%) 275 (51%)
Race/ethnicity    
   Non-Hispanic white 47 (85%) 251 (90%) 301 (79%)
   Non-Hispanic black 17 (9%) 49 (5%) 124 (8%)
   Hispanic 26 (5%) 75 (5%) 153 (9%)
   Other 0 (0%) 1 (0%) 12 (4%)
BMI status    
   Normal (BMI < 25 kg/m2) 22 (31%) 152 (45%) 208 (42%)
   Overweight (25 ≤ BMI < 30 kg/m2) 39 (45%) 145 (39%) 212 (35%)
   Obese (BMI ≥ 30 kg/m2) 25 (25%) 50 (16%) 133 (23%)
Radiographic knee OA    
   Yes 36 (31%) 130 (32%) 177 (30%)
   No 47 (69%) 234 (68%) 391 (70%)
Diabetes    
   Yes 19 (15%) 36 (8%) 81 (11%)
   No 71 (85%) 339 (92%) 508 (89%)
Total cholesterol    
   Desirable (< 200) 27 (26%) 120 (27%) 190 (29%)
   Borderline high (200 to 239) 32 (39%) 140 (40%) 218 (39%)
   High (≥ 240) 31 (35%) 113 (32%) 173 (32%)
  1. Data presented as n (%). Percentages are weighted using Third National Health and Nutrition Examination Survey sampling weights. BMI, body mass index; OA, osteoarthritis.