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Table 1 Demographic characteristics of patients with osteoarthritis, n = 93

From: Criterion validity of The International Physical Activity Questionnaire-Short Form (IPAQ-SF) for use in clinical practice in patients with osteoarthritis

Age (years), mean (SD) 64.8 (8.7)
Women, n (%) 81 (87.1)
BMI (kg/m2), mean (SD)a 25.5 (3.9)
 Normal weight (BMI < 25), n (%) 46 (51.1)
 Overweight (BMI ≥25 to < 30), n (%) 32 (35.6)
 Obese (BMI ≥30), n (%) 12 (13.3)
Smoking, n (%)
 Current 8 (8.6)
 Previous 49 (52.7)
 Never 36 (38.7)
Education level ≥ 1 year college/university, n (%) 63 (67.7)
Employed, n (%)b 42 (46.2)
 Not employed status, n (%)
  Retired 37 (40.6)
  Well-fare/sick leave/else 12 (13.2)
Civil status, living alone 36 (38.7)
Pain (NRS, 0–10), mean (SD)c 4.3 (2.1)
General health (EQ-5D-VAS, 0–100), mean (SD)b 64.3 (18.8)
  1. BMI Body mass index; NRS Numeric rating scale; EQ-5D-VAS EuroQol-5D-Visual Analog Scale; IQR Interquartile range.
  2. a, n = 90 due to missing height/weight data to calculate BMI
  3. b, n = 91 due to missing data
  4. c, n = 92 due to missing data