Table 3.
Overlap of accelerometry and diary NWT periods identified using the >60-min to >180-min algorithms.
| NWT algorithma | ActivE study (N = 47) | |||||||
|---|---|---|---|---|---|---|---|---|
| diary NWT | accelerometry NWT | diary and/or accelerometry NWT minutes | ||||||
| total | periods | total | periods | potential totalb | diary and accelerometry | diary only | accelerometry only | |
| min. | n | min. | n | min. | % | % | % | |
| total time of assessment c | ||||||||
| >60 min | 7,891 | 50 | 34,127 | 378 | 35,612 | 18.0 | 4.2 | 77.8 |
| >90 min | 6,133 | 25 | 13,243 | 81 | 14,170 | 36.7 | 6.5 | 56.7 |
| >120 min | 5,400 | 18 | 8,301 | 34 | 9,156 | 49.6 | 9.3 | 41.0 |
| >150 min | 4,463 | 11 | 6,065 | 17 | 6,759 | 55.8 | 10.3 | 34.0 |
| >180 min | 3,983 | 8 | 4,903 | 10 | 5,436 | 63.5 | 9.8 | 26.7 |
| waking d | ||||||||
| >60 min | 5,079 | 47 | 7,956 | 75 | 9,302 | 40.1 | 14.5 | 45.4 |
| >90 min | 3,321 | 22 | 4,914 | 34 | 5,702 | 44.4 | 13.8 | 41.8 |
| >120 min | 2,470 | 14 | 3,123 | 17 | 3,815 | 46.6 | 18.1 | 35.3 |
| >150 min | 1,533 | 7 | 1,934 | 8 | 2,465 | 40.6 | 21.5 | 37.8 |
| >180 min | 873 | 3 | 1,119 | 3 | 1,309 | 52.2 | 14.5 | 33.3 |
| sleeping d | ||||||||
| >60 min | 1,257 | 3 | 24,382 | 299 | 24,418 | 5.0 | 0.1 | 94.9 |
| >90 min | 1,257 | 3 | 6,676 | 44 | 6,712 | 18.2 | 0.5 | 81.3 |
| >120 min | 1,257 | 3 | 3,832 | 16 | 3,868 | 31.6 | 0.9 | 67.5 |
| >150 min | 1,257 | 3 | 2,926 | 9 | 2,962 | 41.2 | 1.2 | 57.6 |
| >180 min | 1,257 | 3 | 2,401 | 6 | 2,437 | 50.1 | 1.5 | 48.4 |
| KORA FF4 study (N = 559) | ||||||||
| total time of assessment c | ||||||||
| >60 min | 83,642 | 476 | 189,666 | 1,535 | 212,912 | 28.4 | 10.9 | 60.7 |
| >90 min | 69,810 | 269 | 110,560 | 420 | 128,642 | 40.2 | 14.1 | 45.7 |
| >120 min | 62,806 | 199 | 95,794 | 284 | 111,616 | 42.1 | 14.2 | 43.7 |
| >150 min | 57,396 | 156 | 87,262 | 223 | 103,171 | 40.2 | 15.4 | 44.4 |
| >180 min | 53,933 | 134 | 81,623 | 192 | 96,786 | 40.1 | 15.7 | 44.3 |
| waking d | ||||||||
| >60 min | 56,004 | 369 | 82,091 | 531 | 97,708 | 41.3 | 16.0 | 42.7 |
| >90 min | 45,447 | 214 | 61,874 | 257 | 74,082 | 44.9 | 16.5 | 38.7 |
| >120 min | 38,529 | 145 | 52,835 | 178 | 62,915 | 45.2 | 16.0 | 38.8 |
| >150 min | 34,359 | 112 | 46,430 | 132 | 56,822 | 42.2 | 18.3 | 39.5 |
| >180 min | 31,009 | 91 | 42,257 | 108 | 51,776 | 41.5 | 18.4 | 40.1 |
| sleeping d | ||||||||
| >60 min | 9,331 | 22 | 86,690 | 868 | 88,080 | 9.0 | 1.6 | 89.4 |
| >90 min | 9,270 | 21 | 35,146 | 130 | 36,605 | 21.3 | 4.0 | 74.7 |
| >120 min | 9,270 | 21 | 30,204 | 81 | 31,663 | 24.7 | 4.6 | 70.7 |
| >150 min | 9,270 | 21 | 29,411 | 75 | 30,870 | 25.3 | 4.7 | 70.0 |
| >180 min | 9,108 | 20 | 27,923 | 66 | 29,381 | 26.0 | 5.0 | 69.0 |
NWT, non-wear time. aAlgorithms were applied to diary and accelerometry data to check for self-reported NWT periods >60, >90, >120, >150, and >180 minutes or NWT periods based on consecutive acceleration zero-counts >60, >90, >120, >150, and >180 minutes, respectively.
bPotential total NWT includes NWT which is NWT detected by either diary, accelerometry, or both.
cAnalyses were conducted from the first to the last recorded time point of assessment in the diary.
dWaking and sleeping phases were derived from participants’ diary entries.