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Table 4 The reproducibility of different outcome variables for one out of two weeks of measurement for school hours, afternoon and total leisure time, applying a ≥ 3 weekdays and ≥ 1 weekend day wear time criterion (n = 465 (69%) children)

From: Reproducibility of domain-specific physical activity over two seasons in children

 

School hours

Afternoon hours

Leisure time*

ICCs

LoA

N

ICCs

LoA

N

ICCs

LoA

N

Not corrected for season (absolute agreement definition)

Overall PA (cpm)

0.56

343

3.2

0.15

679

22.8

0.14

621

24.3

SED (min/day)

0.63

30.0

2.4

0.38

63.3

6.5

0.47

66.1

4.6

LPA (min/day)

0.57

22.9

3.0

0.50

38.8

4.0

0.59

41.1

2.8

MPA (min/day)

0.57

10.0

3.0

0.30

16.6

9.3

0.35

17.7

7.3

VPA (min/day)

0.57

12.1

3.0

0.26

19.9

11.6

0.24

21.7

12.5

MVPA (min/day)

0.60

18.3

2.7

0.29

33.5

9.9

0.31

36.0

9.0

 

Corrected for season (consistency definition)

Overall PA (cpm)

0.57

335

3.0

0.42

507

5.6

0.42

462

5.5

SED (min/day)

0.63

30.1

2.4

0.51

54.1

3.9

0.57

57.1

3.0

LPA (min/day)

0.58

22.6

2.9

0.53

37.0

3.5

0.61

39.6

2.5

MPA (min/day)

0.57

10.0

3.0

0.43

14.3

5.2

0.46

15.5

4.7

VPA (min/day)

0.58

12.0

2.9

0.47

15.5

4.5

0.46

16.8

4.6

MVPA (min/day)

0.61

17.8

2.5

0.50

26.1

4.0

0.51

28.3

3.9

  1. PA Physical activity; cpm Counts per minute; SED Sedentary time; LPA Light physical activity; MPA Moderate physical activity; VPA Vigorous physical activity; MVPA Moderate-to-vigorous physical activity; ICCs Intra-class correlation for a single week of measurement adjusted for wear time; N Number of weeks needed to achieve a ICC = 0.80; LoA = 95% limits of agreement; *Afternoon + Weekend. Estimates not corrected for season are derived from one-way random effect models (i.e., using an absolute agreement definition of reproducibility), whereas models corrected for season are derived from two-way mixed effect models (i.e., using a consistency definition of reproducibility)