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Table 2 Descriptive characteristics of the study population

From: Reliability and Validity of the Dutch Physical Activity Questionnaires for Children (PAQ-C) and Adolescents (PAQ-A)

 

Inter-item and inter-rater reliability (children)

Inter-item and inter-rater reliability (parents)

Concurrent validity

Inter-item reliability (independent cohort)

 

PAQ-C (n = 192)

PAQ-A (n = 94)

PAQ-C (n = 192)

PAQ-A (n = 94)

PAQ-A (n = 44)

PAQ-C (n = 26)

PAQ-A (n = 21)

Age, years

8.9 ± 1.7***

13.6 ± 1.4

  

14.2 ± 1.8

9.1 ± 2.0***

13.2 ± 2.1

Gender

       

Boys, n (%)

91 (47.4)

42 (44.7)

-

-

26 (59.0)

12 (46.2)

14 (66.7)

Girls, n (%)

101 (52.6)

52 (55.3)

-

-

18 (41.0)

14 (53.8)

7 (33.3)

Height, cm

138.1 ± 11.3***

165.0 ± 9.3

-

-

164.3 ± 10.5

138.2 ± 13.4***

159.2 ± 15.1

Weight, kg

32.1 ± 8.5***

54.6 ± 14.7

-

-

77.2 ± 26.4

38.2 ± 17.3***

63.6 ± 26.5

BMI, kg/m2

16.5 ± 2.7***

19.9 ± 4.1

-

-

28.2 ± 8.1

19.1 ± 5.9**

24.9 ± 8.5

Q1

1.50 ± 0.25***

1.35 ± 0.22

1.41 ± 0.21

1.30 ± 0.17

1.26 ± 0.19

1.38 ± 0.16*

1.27 ± 0.12

Q2

4.53 ± 0.72

4.59 ± 0.78

4.43 ± 0.76

4.50 ± 0.84

4.32 ± 1.13

4.58 ± 0.64

4.14 ± 1.11

Q3

3.94 ± 1.01

NA

3.90 ± 0.94

NA

NA

3.89 ± 0.91

NA

Q4

3.60 ± 1.21***

2.24 ± 1.01

3.53 ± 1.13

2.21 ± 0.97

2.34 ± 0.98

3.85 ± 1.29***

2.38 ± 1.16

Q5

2.49 ± 1.22

2.28 ± 1.39

2.42 ± 1.19

2.24 ± 1.33

1.95 ± 1.36

2.23 ± 1.27

2.19 ± 1.47

Q6

2.55 ± 1.09

2.38 ± 1.09

2.49 ± 1.05

2.38 ± 1.09

2.25 ± 1.22

2.39 ± 1.06

2.29 ± 1.06

Q7

2.79 ± 0.89**

2.46 ± 1.02

2.71 ± 0.87

2.50 ± 0.95

2.09 ± 1.20

2.50 ± 1.14

2.24 ± 1.04

Q8

2.95 ± 0.97

2.93 ± 0.96

2.87 ± 0.86

2.80 ± 0.95

2.55 ± 1.32

2.69 ± 0.97

2.76 ± 1.04

Q9

3.12 ± 0.91***

2.71 ± 0.81

3.01 ± 0.88

2.65 ± 0.79

2.24 ± 0.85

2.93 ± 0.82

2.46 ± 0.73

Total mean PAQ

3.05 ± 0.89***

2.62 ± 0.92

2.97 ± 0.89

2.57 ± 0.90

2.36 ± 0.74

2.94 ± 0.57**

2.47 ± 0.69

  1. NA: not applicable. All values are presented as mean ± SD, unless otherwise indicated. Significant differences were detected between PAQ-C and PAQ-A filled in by children and adolescents using the independent samples t test: *P < 0.05, **P ≤ 0.01 and ***P ≤ 0.001.