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Table 2 Counts per minute of the sum, the quantile, and the trimmed sum including intraclass correlation

From: Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum

 

WS1 mean ± SD

Diff (WS1 – WS2) ± SD

ICC (95 % CI)

WS2 mean ± SD

Q80

119 ± 66

4 ± 30

0.89 (0.85; 0.92)

115 ± 62

Q85

158 ± 79

5 ± 33

0.90 (0.87; 0.93)

153 ± 74

Q90

212 ± 96

6 ± 39

0.91 (0.87; 0.93)

205 ± 87

Q95

303 ± 125

9 ± 57

0.88 (0.83; 0.91)

294 ± 107

Q99

523 ± 221

−3 ± 372

0.22 (0.05; 0.39)

525 ± 359

TS80

69,773 ± 49,938

−1,508 ± 28,406

0.84 (0.78; 0.88)

71,280 ± 50,078

TS85

98,674 ± 64,107

−2,304 ± 35,615

0.85 (0.79; 0.89)

100,978 ± 63,797

TS90

136,415 ± 80,600

−3,165 ± 44,821

0.84 (0.78; 0.89)

139,579 ± 79,010

TS95

187,115 ± 99,191

−5,156 ± 55,106

0.84 (0.78; 0.89)

192,271 ± 97,347

TS99

248,356 ± 119,996

−6,514 ± 70,062

0.82 (0.75; 0.87)

254,871 ± 114,305

Overall sum

273,470 ± 127,960

−9,720 ± 85,596

0.77 (0.68; 0.83)

283,189 ± 123,043

  1. WS1 week set 1, WS2 week set 2, SD standard deviation, diff difference, ICC intraclass correlation, 95 % CI 95 % confidence interval