Objectively measured physical activity and sedentary time in children with overweight, obesity and morbid obesity: a cross-sectional analysis

Table 1 Participant characteristics, PA levels and ST for the total sample as well as for the different weight categories, sex and age group

	Total N = 202	OV N = 58	OB N = 93	MO N = 51	P	B N = 90	G N = 112	P	Primary school age (<12y) N = 98	Secondary school age (≥12 y) N = 104	P
Demographics
Age, years	12 ± 3	12 ± 3	12 ± 3	12 ± 4	.729	12 ± 3	12 ± 3	.222	9 ± 2	15 ± 2	<.001
Sex, M/F	45/55	50/50	43/57	41/59	.604				47/53	42/58	.530
Anthropometry
BMI z-score	3.15 ± .73	2.39 ± .33 ^{a, c}	3.16 ± .44^a,b	4.00 .53^{b, c}	<.001	3.3 ± .8	3.0 ± .7	.010	3.13 ± .73	3.17 ± .74	.701
PA
Total PA, CPM	768 ± 298	780 ± 281	715 ± 263^b	851 ± 357^b	.030	861 ± 330	698 ± 253	<.001	910 ± 300	634 ± 227	<.001
ST, min/day	589 ± 142	601 ± 130^c	606 ± 138^b	547 ± 154^bc	.046	572 ± 151	602 ± 134	.170	536 ± 133	640 ± 131	<.001
ST, %/day	69 ± 10	69 ± 9	70 ± 8^b	66 ± 11^b	.033	67 ± 11	70 ± 9	.010	65 ± 10	73 ± 8	<.001
LPA, min/day	221 ± 63	223 ± 63	214 ± 62	230 ± 65	.300	230 ± 68	213 ± 59	.073	248 ± 58	195 ± 57	<.001
LPA, %/day	26 ± 8	26 ± 7	25 ± 8^b	29 ± 10 ^b	.048	28 ± 9	36 ± 7	.056	30 ± 8	23 ± 6	<.001
MVPA, min/day	41 ± 19	44 ± 18	38 ± 18	43 ± 20	.106	47 ± 20	36 ± 16	<.001	44 ± 19	38 ± 18	.025
MVPA, %/day	5 ± 2	5 ± 2	4 ± 2	5 ± 3	.056	6 ± 3	4 ± 2	<.001	5 ± 3	4 ± 2	.008
Wear-time min/day	851 ± 132	868 ± 118	857 ± 137	820 ± 134	.139	851 ± 135	851 ± 130	.998	827 ± 126	873 ± 133	.013

Abbreviations: OB Obesity, OV Overweight, MO Morbid Obesity, B Boys, G Girls, BMI Body mass index, PA Physical activity, CPM Counts Per Minute, ST Sedentary time, LPA Light physical activity, MVPA Moderate-to-vigorous physical activity. Physical activity intensities are presented as mean minutes per day ± standard deviation or as percentage of wear time. ^a Statistical difference between overweight and obese children ^b Statistical difference between obese and morbidly obese children ^c Statistical difference between overweight and morbidly obese children

ISSN: 1471-2458