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Table 1 Number of different values per person among all counts/minute, overall and by categories for youth and adults; NHANES 2003–2006

From: Performance of the ActiGraph accelerometer using a national population-based sample of youth and adults

 

Youth 6–17 years (n = 4028)

Adults > =18 years (n = 7931)

Mean (SE)

25th percentile

50th percentile

75th percentile

Mean (SE)

25th percentile

50th percentile

75th percentile

Overall, counts/minute

1381.4 (5.5)

1127.0

1360.0

1623.0

1101.2 (3.7)

874.0

1085.0

1313.0

0 to 99 counts/minute

99.7 (0.0)

100.0

100.0

100.0

99.8 (0.0)

100.0

100.0

100.0

100 to 499 counts/minute

351.2 (0.6)

336.0

361.0

377.0

352.4 (0.5)

338.0

364.0

380.0

500 to 999 counts/minute

305.6 (1.1)

259.0

314.0

360.0

284.0 (1.0)

226.0

296.0

353.0

1000 to 1999 counts/minute

328.0 (1.9)

236.0

320.0

416.0

240.5 (1.6)

136.0

225.0

329.0

2000 to 2999 counts/minute

149.0 (1.2)

94.0

137.0

195.0

75.4 (0.8)

24.0

58.0

107.0

3000 to 3999 counts/minute

72.1 (0.7)

36.0

63.0

100.0

29.8 (0.4)

5.0

16.0

41.0

4000 to 4999 counts/minute

35.3 (0.5)

13.0

27.0

48.0

16.1 (0.3)

2.0

6.0

19.0

> = 5000 counts/minute

42.5 (0.8)

10.0

25.0

56.0

17.4 (0.6)

1.0

4.0

15.0

  1. SE = standard error.