Table 3.

Mean (± SE) hourly wear time by quadrant of the day for all participants in the 2011–2014 NHANES cycles with seven days of recorded data, regardless of wear time, and by age group across the seven-day assessment period and summarized by time of week (weekdays versus weekends).

		Day of Assessment								Time of Week
Group	Quadrant of the Day	Day 1	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7	Mean	Weekday	Weekend
All Participants	Early Morning (00:00 – 05:59)	52.7 ± 0.2	51.5 ±0.3	50.8 ± 0.3	50.5 ± 0.3	50.0 ± 0.2	49.3 ± 0.3	48.5 ± 0.2	50.5 ± 0.2	50.8 ± 0.2	49.7 ± 0.2
	Late Morning (06:00 – 11:59)	55.2 ± 0.2	54.7 ± 0.2	53.9 ± 0.2	53.8 ± 0.2	52.9 ± 0.2	52.1 ± 0.2	50.2 ± 0.2	53.3 ± 0.1	53.9 ± 0.1	51.7 ± 0.2
	Afternoon (12:00 – 17:59)	55.8 ± 0.1	55.1 ± 0.1	54.6 ± 0.2	54.2 ± 0.1	53.5 ± 0.2	53.0 ± 0.2	50.0 ± 0.3	53.7 ± 0.1	54.2 ± 0.1	52.6 ± 0.2
	Evening (18:00 – 23:59)	53.6 ± 0.2	52.7 ± 0.2	52.6 ± 0.2	51.9 ± 0.1	51.4 ± 0.2	50.8 ± 0.2	46.3 ± 0.4	51.3 ± 0.2	51.8 ± 0.1	50.1 ± 0.3
	Quadrant of the Day	Day 1	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7	Mean	Weekday	Weekend
Children	Early Morning (00:00 – 05:59)	53.1 ± 0.4	52.0 ± 0.5	51.8 ± 0.4	51.2 ± 0.5	50.8 ± 0.4	50.4 ± 0.6	49.2 ± 0.5	51.2 ± 0.4	51.5 ± 0.4	50.7 ± 0.5
	Late Morning (06:00 – 11:59)	56.5 ± 0.3	55.7 ± 0.4	55.5 ± 0.3	55.0 ± 0.4	54.4 ± 0.4	53.4 ± 0.6	51.2 ± 0.4	54.5 ± 0.3	55.2 ± 0.3	52.8 ± 0.4
	Afternoon (12:00 – 17:59)	56.9 ± 0.3	56.3 ± 0.3	56.0 ± 0.3	55.7 ± 0.4	55.1 ± 0.4	54.1 ± 0.4	51.0 ± 0.6	55.0 ± 0.3	55.6 ± 0.3	53.6 ± 0.4
	Evening (18:00 – 23:59)	54.4 ± 0.4	54.0 ± 0.4	53.5 ± 0.4	53.3 ± 0.4	52.8 ± 0.5	51.6 ± 0.5	47.4 ± 0.6	52.4 ± 0.3	53.0 ± 0.3	51.1 ± 0.5
	Quadrant of the Day	Day 1	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7	Mean	Weekday	Weekend
Adolescents	Early Morning (00:00 – 05:59)	51.2 ± 0.5	48.5 ± 0.6	47.5 ± 0.8	47.5 ± 0.7	46.9 ± 0.6	45.2 ± 0.9	44.5 ± 0.6	47.3 ± 0.5	47.8 ± 0.5	46.0 ± 0.7
	Late Morning (06:00 – 11:59)	53.7 ± 0.5	52.8 ± 0.4	50.9 ± 0.5	51.5 ± 0.4	49.8 ± 0.7	48.2 ± 0.7	46.1 ± 0.7	50.4 ± 0.4	51.5 ± 0.4	47.7 ± 0.7
	Afternoon (12:00 – 17:59)	54.6 ± 0.3	52.9 ± 0.4	52.0 ± 0.4	51.5 ± 0.4	50.3 ± 0.5	50.2 ± 0.6	46.5 ± 0.8	51.1 ± 0.3	51.8 ± 0.3	49.4 ± 0.6
	Evening (18:00 – 23:59)	52.0 ± 0.5	50.1 ± 0.7	50.6 ± 0.4	49.0 ± 0.5	48.0 ± 0.6	47.8 ± 0.6	42.7 ± 1.0	48.6 ± 0.4	49.3 ± 0.4	46.8 ± 0.7
	Quadrant of the Day	Day 1	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7	Mean	Weekday	Weekend
Adults	Early Morning (00:00 – 05:59)	51.6 ± 0.3	50.7 ± 0.3	49.9 ± 0.3	48.8 ± 0.3	48.4 ± 0.3	48.0 ± 0.3	47.0 ± 0.4	49.2 ± 0.3	49.6 ± 0.3	48.2 ± 0.3
	Late Morning (06:00 – 11:59)	54.1 ± 0.2	53.8 ± 0.2	53.1 ± 0.2	52.3 ± 0.3	51.8 ± 0.3	51.3 ± 0.3	49.2 ± 0.3	52.2 ± 0.2	52.8 ± 0.2	50.7 ± 0.3
	Afternoon (12:00 – 17:59)	55.1 ± 0.2	54.8 ± 0.2	54.2 ± 0.2	53.5 ± 0.2	53.1 ± 0.3	52.2 ± 0.3	49.4 ± 0.3	53.2 ± 0.2	53.6 ± 0.2	52.0 ± 0.3
	Evening (18:00 – 23:59)	53.0 ± 0.3	52.4 ± 0.3	51.5 ± 0.2	51.1 ± 0.3	50.5 ± 0.3	49.9 ± 0.3	45.2 ± 0.4	50.5 ± 0.2	51.0 ± 0.2	49.3 ± 0.3
	Quadrant of the Day	Day 1	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7	Mean	Weekday	Weekend
Older Adults	Early Morning (00:00 – 05:59)	54.8 ± 0.3	54.7 ± 0.3	54.1 ± 0.5	54.3 ± 0.3	53.9 ± 0.4	53.6 ± 0.4	53.4 ± 0.4	54.1 ± 0.3	54.2 ± 0.3	53.8 ± 0.4
	Late Morning (06:00 – 11:59)	56.6 ± 0.2	56.5 ± 0.2	56.3 ± 0.2	56.3 ± 0.2	55.7 ± 0.3	55.4 ± 0.3	54.2 ± 0.3	55.9 ± 0.2	56.0 ± 0.2	55.6 ± 0.2
	Afternoon (12:00 – 17:59)	56.6 ± 0.2	56.3 ± 0.2	56.3 ±0.2	56.0 ± 0.2	55.7 ± 0.3	55.5 ± 0.2	53.1 ± 0.4	55.6 ± 0.2	55.8 ± 0.2	55.2 ± 0.2
	Evening (18:00 – 23:59)	54.9 ± 0.2	54.4 ± 0.3	54.7 ± 0.2	54.2 ± 0.3	54.3 ± 0.3	53.9 ± 0.3	50.1 ± 0.5	53.8 ± 0.2	54.0 ± 0.2	53.3 ± 0.3