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Table 5 Compliance with WHO’s recommendations on different physical activity measurement methods

From: Validation of the NPAQ-short – a brief questionnaire to monitor physical activity and compliance with the WHO recommendations

   Self-reported
Compliance with WHO’s recommendations Objectively measureda
n (%)
Open-ended questionsa
n (%)
Closed-ended questionsb
n (%)
Open-ended questions categorizedc
n (%)
No 20 (22) 17 (19) 24 (27) 13 (15)
Yes 72 (78) 72 (81) 65 (73) 76 (85)
Kappa (95% CI) 0.42 (0.19;0.65) 0.34 (0.12;0.56) 0.37 (0.14;0.61)
Specificityd 50% 55% 40%
Sensitivitye 90% 81% 93%
  1. WHO’s recommendations on physical activity (> 150 min of MPA or > 75 min of VPA or an equivalent combination). Cohens Kappa (к) with 95% Confidence Interval (CI) for comparison between self-reported measures and the objectively measure. Specificity and sensitivity for self-reported measures compared to the objective measure. n = 89
  2. aCalculated as a combination of minutes MVPA and VPA (described in Additional file 1)
  3. bCombining both answers on MVPA and VPA-questions (described in Additional file 1)
  4. cOpen-ended questions categorized into closed-ended categories
  5. dSpecificity is the number of participants with PA-levels below the recommendations both measured by self-report and objectively as a percentage of those with PA-levels below according to the objective measure
  6. eSensitivity is the number of participants with PA-levels above the recommendations both measured by self-report and objectively as a percentage of those with PA-levels above according to the objective measure