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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Am J Phys Anthropol. 2018 Jul;166(3):590–600. doi: 10.1002/ajpa.23454

Table 3.

Women’s nightly activities from self-report. Activities ranked from most to least commonly reported by tertiles of sleep onset time. Post-dinner activity profiles are more similar across tertiles among women than among men. Household chores and watching TV were associated with later sleep onset time. Note that the unit of measure for this analysis is a single evening, and a single participant could potentially contribute data points to all three quantiles.

Quantile 1 Quantile 2 Quantile 3
Onset 6:06PM-8:24PM 8:24PM-9:12PM 9:12PM-3:42AM
Mean sleep duration 463.9 minutes 424.2 minutes 372.7 minutes
Mean sleep offset 5:23AM 5:31AM 5:50AM
Activity 1 Relax (16) Relax (18) Listen to Radio (17)
Activity 2 Listen to Radio (10) Listen to Radio (13) Relax (15)
Activity 3 Watch TV (3) Just sleep (6) Work around the house (12)
Activity 4 Just sleep (2) Social visit (5) Just sleep (10)
Activity 5 Social visit (2) Work around the house (5) Watch TV (6)
Activity 6 Work around the house (2) Watch TV (4) Social visit (4)
Activity 7 Hunt/fish (1) Hunt/fish (1)
Activity 8 Other (1) Other (1)
Total observations 37 51 66
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