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Table 2 Physical activity values assessed by IPAQ-SF and accelerometer, including p-values for differences (n = 93)

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

  IPAQ-SF Accelerometer Mean difference (95% CI) Difference
p-value
PA guidelines*, n (%)
 Proportion fulfilling PA guidelines 53 (57.0) 29 (31.2)   0.043c
PA levels, median (IQR)
 Total PA MET-minutes, per week 1985 (898, 4217) a 4059 (2712, 5467) − 1616 (− 2096, − 1137) < 0.001 d
 MVPA MET-minutes, per week 780 (120,1680) 238 (45, 648) 775 (445, 1104) < 0.001 d
 MVPA-minutes, per week 180 (30, 300) 60 (11, 162) 118 (53, 183) < 0.001 d
 Vigorous PA, minutes per week 15 (0, 120) 0 (0, 0) 70 (45, 96) - e
 Moderate PA, minutes per week 90 (0, 210) 60 (11, 162) 53 (−1, 107) 0.272 d
 Walking/light PA, minutes per week 245 (105, 630) a 1101 (711, 1475) − 729 (− 865, − 593) < 0.001 d
 Sitting/sedentary time, hours per weekday 6.0 (4.0, 10.0) b 8.9 (7.8, 10.0) −1.8 (−2.5, − 1.1) < 0.001 d
  1. 95% CI, 95% confidence interval; IPAQ-SF The International Physical Activity Questionnaire-Short Form; MVPA moderate to vigorous intensity physical activity; MET Metabolic Equivalent of Task.
  2. Data given in frequency (percent) for ‘Proportion fulfilling PA guidelines’ and median (interquartile range, IQR) for ‘PA levels’.
  3. *Fulfilling PA guidelines, ≥150 min of MVPA or ≥ 75 min of vigorous PA per week