TABLE 2.

Mean sleep parameters, physical activity, energy expenditure, and dietary intake behaviors for the total sample and by child age¹

	3 years	4 years	5 years	Total
	n = 38	n = 41	n = 39	N = 118
Sleep
Sleep onset, h:min	22:28 ± 1:29	22:00 ± 1:30	22:24 ± 1:35	22:16 ± 1:32
Sleep midpoint, h:min	3:10 ± 1:18	2:50 ± 1:26	3:06 ± 1:28	3:01 ± 1:18
Sleep offset, h:min	7:49 ± 1:17	7:31 ± 1:23	7:49 ± 1:23	7:42 ± 1:20
Time in bed, min	557.8 ± 54.3	573.3 ± 44.8	566.6 ± 46.5	565.8 ± 48.7
Wake after sleep onset, min	56.5 ± 21.3	57.2 ± 22.4	46.7 ± 19.9	53.5 ± 21.6
Total sleep duration, min	551.2 ± 40.6	543.5 ± 43.4	535.2 ± 41.1	543.4 ± 41.8
Sleep regularity index	65.9 ± 8.5	70.3 ± 7.4	73.7 ± 8.5	69.9 ± 8.7
Physical activity and energy expenditure
Sedentary, min/d	361.7 ± 75.0	369.9 ± 80.4	394.3 ± 56.0	375.2 ± 72.0
Light physical activity, min/d	385.6 ± 64.9	381.8 ± 53.4	381.1 ± 47.9	382.8 ± 55.5
Moderate to vigorous physical activity, min/d	52.8 ± 22.6	54.4 ± 30.0	53.4 ± 22.2	53.5 ± 24.9
Total energy expenditure, kcal/d	1079 ± 143	1239 ± 176	1277 ± 176	1197 ± 186
Dietary intake
Total energy intake, kcal/d	1360 ± 326	1374 ± 277	1489 ± 316	1405 ± 308
Morning energy intake, kcal/d	294 ± 117	293 ± 116	307 ± 127	299 ± 119
Nighttime energy intake, kcal/d	352 ± 177	387 ± 202	409 ± 233	379 ± 207
Time of first eating event, h:min	8:49 ± 1:58	8:23 ± 1:38	8:31 ± 1:30	8:34 ± 1:38
Time of last eating event, h:min	19:19 ± 1:00	19:04 ± 1:08	19:11 ± 1:04	19:11 ± 1:04

¹Values are presented as means ± SDs.