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Table 1 Description of missing data in participant monitor-logs: Women’s Health Study

From: Impact of accelerometer data processing decisions on the sample size, wear time and physical activity level of a large cohort study

Day Any missing
  Date N (%) Time N (%) AM or PM N (%)
One 2 (0.0) 107 (1.4) 1475 (19.3)
Two 51 (0.7) 157 (2.1) 1560 (20.4)
Three 66 (0.9) 209 (2.7) 1603 (21.0)
Four 79 (1.0) 264 (3.5) 1698 (22.2)
Five 102 (1.3) 297 (3.9) 1736 (22.7)
Six 120 (1.6) 320 (4.2) 1760 (23.0)
Seven 167 (2.2) 329 (4.3) 1788 (23.4)
  1. Note: Date refers to missing month, day or year for a given day; Time refers to missing hour and/or minute for either the time the monitor was put on or the time the monitor was taken off; AM or PM refers to missing AM/PM for either the time the monitor was put on or the time the monitor was taken off.
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