Screen time exposure, sleep alterations, and their relationship with excess weight in children and adolescents

Table 3 Lifestyle exposure parameters (diet, physical activity, and electronic screen time) and sleep quality disturbances, n (%)

	Total cohort, n = 70	Normal weight, n = 26	Obesity, n = 44	P value
KIDMED score categories				0.0292
Very low quality	20 (28.6)	5 (19.2)	15 (34.1)
Needs improvement	40 (57.1)	20 (77)	20 (45.4)
Optimal	10 (14.3)	1 (3.8)	9 (20.5)
Physical activity level				0.0212
Low	36 (51.4)	8 (30.8)	28 (63.6)
Moderate	16 (22.9)	6 (23.1)	10 (22.7)
High	14 (20)	9 (34.6)	5 (11.4)
Vigorous	3 (4.3)	2 (7.7)	1 (2.3)
Very vigorous	1 (1.4)	1 (3.8)	0 (0)
K-P total score	4.9 (2.6)	6.0 (2.3)	4.0 (2.6)	0.0041
Screen time hours (K-P)	2.6 (1.5)	2.1 (1.4)	2.9 (1.5)	0.0471
Sports hours (K-P)	2.9 (3.4)	4.1 (4.1)	2.0 (2.3)	0.0111
Mean sleep duration (hours)	8.7 (1.3)	9.1 (1.5)	8.4 (1.0)	0.0211
Presence of chronic sleep disturbances (> 1 year)				0.0162
No	41 (75)	22 (92)	19 (61)
Yes	14 (25)	2 (8.3)	12 (39)

¹P value determined by the Wilcoxon-Mann-Whitney test.

²P value determined by the χ² test.

K-P: Krece-Plus.