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Table 3 Percentage of female respondents, by valid days of accelerometer wear (using ≥ 8, ≥ 10 and ≥ 12 hours of wear as criteria) and age group

From: International children's accelerometry database (ICAD): Design and methods

  Number of valid days
  0 1 2 3 4 5 6 7 ≥ 1 ≥ 4
3 to 5           
≥ 8 hrs 7.7 8.6 20.8 19.9 25.0 9.0 8.4 0.7 92.3 43.1
≥ 10 hrs 12.8 11.9 24.3 21.2 21.1 5.0 3.4 0.3 87.2 29.8
≥ 12 hrs 30.6 23.2 24.0 14.0 6.6 1.0 0.4 0.1 69.3 8.1
6 to 8           
≥ 8 hrs 2.3 3.1 5.8 9.7 31.3 13.7 15.5 18.6 97.7 79.2
≥ 10 hrs 4.4 5.0 10.3 14.2 29.5 10.6 11.7 14.2 95.6 66.1
≥ 12 hrs 11.6 12.8 17.7 19.5 15.8 7.2 6.0 9.4 88.5 38.4
9 to 11           
≥ 8 hrs 1.0 1.9 3.8 8.2 29.0 19.7 22.8 13.6 99.0 85.1
≥ 10 hrs 1.9 3.2 6.5 12.8 29.5 19.7 17.9 8.6 98.1 75.6
≥ 12 hrs 5.2 8.3 14.8 20.6 24.8 14.5 8.0 3.9 94.8 51.1
12 to14           
≥ 8 hrs 2.6 3.2 4.3 7.8 11.8 18.3 24.8 27.1 97.4 82.0
≥ 10 hrs 4.3 4.7 6.6 9.9 15.7 19.3 22.6 16.8 95.7 74.4
≥ 12 hrs 7.6 8.3 10.3 14.5 19.2 18.8 15.2 6.2 92.4 59.3
15 to18           
≥ 8 hrs 5.2 6.4 6.3 9.6 19.2 19.4 19.0 15.1 94.9 72.6
≥ 10 hrs 8.0 9.0 9.0 12.9 20.5 15.3 16.3 9.1 92.0 61.1
≥ 12 hrs 14.8 11.2 13.0 16.3 18.0 13.4 9.3 4.1 85.2 44.7
Overall           
8 hrs 3.8 4.6 8.2 11.0 23.3 16.0 18.1 15.0 96.3 72.4
10 hrs 6.3 6.8 11.3 14.2 23.3 14.0 14.4 9.8 93.7 61.4
12 hrs 14.0 12.8 16.0 17.0 16.9 11.0 7.8 4.7 86.0 40.3