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Table 5 Spearman rank-correlation coefficients for the WHO HBSC questionnaire and the IPAQ against VO2peak, TEE and PAL to assess validity

From: Reliability and validity of two frequently used self-administered physical activity questionnaires in adolescents

Questionnaire VO2peak (l·min-1) TEE PAL
  All
(n = 67)
Girls
(n = 37)
Boys
(n = 30)
All
(n = 62)
Girls
(n = 36)
Boys
(n = 26)
All
(n = 62)
Girls
(n = 36)
Boys
(n = 26)
WHO HBSC          
Frequency 0.39** 0.55** 0.31 0.20 0.25 0.08 0.02 0.01 -0.07
Duration 0.33** 0.41* 0.21 0.23 0.21 0.24 0.01 -0.1 0.07
Frequency, 3 categories 0.36** 0.53** 0.31 0.22 0.28 0.11 0.02 0.05 -0.06
Duration, 3 categories 0.29* 0.30 0.31 0.22 0.23 0.25 -0.02 -0.08 0.03
IPAQ          
Vigorous activity (days/week) 0.26* 0.37* 0.02 0.19 0.20 0.10 0.09 0.03 0.05
Vigorous activity (min/day) -0.32* -0,27 -0.31 -0.14 -0.02 -0.29 -0.08 0.12 -0.08
Moderate activity (days/week) -0.03 0.11 0.04 0.07 0.04 0.18 0.05 -0.02 0.14
Moderate activity (min/day) 0.13 0.02 -0.17 0.01 -0.17 0.25 0.01 -0.09 0.10
Walking (days/week) 0.12 0.19 -0.12 0.15 0.11 0.22 0.13 0.05 0.25
Walking (min/day) -0.14 -0.41* 0.20 0.24 0.15 0.38 0.43** 0.28 0.61**
Sitting (min/day) 0.18 0.33 0.30 -0.04 0.54** -0.42 -0.29 0.25 -0.68**
3 categories 0.32** 0.43** 0.18 0.09 011 -0.02 -0.03 -0.12 -0.05
  1. TEE = Total energy expenditure for 7 days.
  2. PAL = Average physical activity level for 7 days.
  3. * p < 0.05;
  4. ** p < 0.01
  5. 3 categories = Classification of physical activity in three levels; "low", "moderate" and "high" activity