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Table 3 Number of days of reporting required for reliable My Little Moves app-based estimates of 24-h movement behaviors

From: Assessing 24-h movement behaviors in early childhood (0–4 years): Reliability of the My Little Moves app and comparison with accelerometry

Outcome

Minimum reporting time (hours/day)

Single day ICC [95% CI]a

Minimum days required to achieve reliability of 70%

Number (N (%)) parents meeting minimum reporting time

PA (min/day)

 ≥ 12

0.16 [0.10;0.23]

11.96

 ≥ 13

0.15 [0.09;0.22]

13.12

 ≥ 14

0.15 [0.09;0.22]

13.33

 ≥ 15

0.22 [0.15;0.29]

8.48

 ≥ 16

0.35 [0.26;0.44]

4.43

157 (48.46)

 ≥ 17

0.38 [0.29;0.48]

3.75

216 (66.67)

 ≥ 18

0.39 [0.30;0.49]

3.62

204 (62.96)

 ≥ 19

0.42 [0.32;0.52]

3.20

193 (59.57)

 ≥ 20

0.46 [0.37;0.55]

2.73

250 (77.16)

 ≥ 21

0.49 [0.39;0.59]

2.41

242 (74.69)

 ≥ 22

0.53 [0.43;0.63]

2.06

226 (69.75)

≥ 23

0.57 [0.46;0.66]

1.79

270 (83.33)

24

0.52 [0.38;0.67]

2.18

160 (49.38)

SB (min/day)

 ≥ 12

0.21 [0.15;0.27]

8.85

 ≥ 13

0.26 [0.19;0.32]

6.80

199 (61.42)

 ≥ 14

0.25 [0.18;0.32]

7.16

 ≥ 15

0.30 [0.23;0.38]

5.41

168 (51.85)

 ≥ 16

0.36 [0.27;0.45]

4.23

157 (48.46)

 ≥ 17

0.38 [0.30;0.48]

3.74

216 (66.67)

 ≥ 18

0.38 [0.29;0.48]

3.74

204 (62.96)

 ≥ 19

0.40 [0.31;0.51]

3.46

193 (59.56)

 ≥ 20

0.42 [0.32;0.53]

3.25

179 (55.25)

 ≥ 21

0.40 [0.30;0.52]

3.46

161 (49.69)

 ≥ 22

0.41 [0.30;0.53]

3.38

150 (46.30)

 ≥ 23

0.38 [0.27;0.52]

3.80

125 (38.58)

24

0.36 [0.23;0.54]

4.20

48 (14.81)

Sleep (min/day)

 ≥ 12

0.28 [0.22;0.35]

5.89

260 (80.25)

 ≥ 13

0.30 [0.24;0.37]

5.35

252 (77.78)

 ≥ 14

0.32 [0.26;0.39]

4.88

274 (84.57)

 ≥ 15

0.36 [0.29;0.44]

4.14

231 (71.30)

 ≥ 16

0.40 [0.31;0.49]

3.52

232 (71.60)

 ≥ 17

0.46 [0.38;0.56]

2.69

279 (86.11)

 ≥ 18

0.51 [0.42;0.60]

2.25

268 (82.72)

 ≥ 19

0.54 [0.44;0.63]

2.02

266 (82.10)

≥ 20

0.55 [0.45;0.65]

1.92

299 (92.28)

 ≥ 21

0.54 [0.44;0.65]

1.95

293 (90.43)

 ≥ 22

0.55 [0.45;0.66]

1.88

284 (87.65)

 ≥ 23

0.54 [0.42;0.66]

1.99

270 (83.33)

24

0.50 [0.36;0.66]

2.37

160 (49.38)

ilr.PA

 ≥ 12

0.20 [0.14;0.27]

9.29

 ≥ 13

0.20 [0.13;0.26]

9.60

 ≥ 14

0.21 [0.14;0.28]

9.00

 ≥ 15

0.27 [0.19;0.35]

6.41

94 (29.01)

 ≥ 16

0.39 [0.31;0.49]

3.58

232 (71.60)

 ≥ 17

0.41 [0.32;0.50]

3.40

216 (66.67)

 ≥ 18

0.41 [0.32;0.51]

3.31

204 (62.96)

 ≥ 19

0.43 [0.34;0.53]

3.04

193 (59.56)

 ≥ 20

0.41 [0.32;0.50]

2.32

250 (77.16)

 ≥ 21

0.52 [0.42;0.62]

2.14

242 (74.69)

≥ 22

0.56 [0.46;0.66]

1.83

284 (87.65)

 ≥ 23

0.58 [0.47;0.68]

1.72

270 (83.33)

24

0.53 [0.39;0.68]

2.11

160 (49.38)

ilr.SB

 ≥ 12

0.26 [0.19;0.33]

6.71

210 (64.81)

 ≥ 13

0.27 [0.21;0.33]

6.43

199 (61.42)

 ≥ 14

0.28 [21;0.35]

6.09

170 (52.47)

 ≥ 15

0.32 [0.25;0.40]

4.91

231 (71.30)

 ≥ 16

0.40 [0.31;0.49]

3.54

232 (71.60)

 ≥ 17

0.42 [0.33;0.51]

3.23

216 (66.67)

 ≥ 18

0.44 [0.34;0.53]

3.02

204 (62.96)

 ≥ 19

0.45 [0.35;0.55]

2.87

266 (82.10)

 ≥ 20

0.48 [0.38;0.58]

2.54

250 (77.16)

 ≥ 21

0.49 [0.38;0.60]

2.42

242 (74.69)

 ≥ 22

0.53 [0.43;0.64]

2.03

226 (69.75)

 ≥ 23

0.54 [0.43;0.65]

1.98

270 (83.33)

24

0.49 [0.36;0.66]

2.40

160 (49.38)

ilr.sleep

 ≥ 12

0.17 [0.11;0.24]

11.13

 ≥ 13

0.18 [0.11;0.24]

10.88

 ≥ 14

0.17 [0.11;0.24]

11.47

 ≥ 15

0.22 [0.14;0.30]

8.43

 ≥ 16

0.37 [0.28;0.46]

3.97

232 (71.60)

 ≥ 17

0.40 [0.31;0.49]

3.55

216 (66.67)

 ≥ 18

0.39 [0.30;0.49]

3.61

204 (62.96)

 ≥ 19

0.43 [0.33;0.53]

3.13

193 (59.57)

 ≥ 20

0.49 [0.40;0.58]

2.44

250 (77.16)

 ≥ 21

0.51 [0.41;0.60]

2.23

242 (74.69)

≥ 22

0.54 [0.44;0.63]

1.98

284 (87.65)

 ≥ 23

0.57 [0.47;0.67]

1.74

270 (83.33)

24

0.54 [0.40;0.68]

2.03

160 (49.38)

  1. aTwo-way random intra-class correlation coefficient, consistency, single
  2. The results corresponding to the highest percentage participants meeting the required reporting time is highlighted in bold
  3. Abbreviations: CI confidence interval, ENMO Euclidean norm minus one, ICC intra-class correlation coefficient, ilr isometric log ratio, MAD mean amplitude deviation, MLM app My Little Moves app, PA physical activity, SB sedentary behavior