Pre-sleep screen time and screen time addiction as shared determinants of poor sleep and obesity in adolescents aged 11–14 years in Scotland

Table 3 Participant characteristics: adolescent sleep by adiposity status

Sleep outcome		UF/HF (n = 40)		OF/OB (n = 22)		Total (n = 60)
Sleep outcome		Mean	SD	Mean	SD	Mean	SD
Morningness-eveningness questionnaire		51.15	9.37	30.91	10.51	43.97	13.77
Child sleep habits questionnaire		43.10	10.74	59.82	10.39	49.03	13.27
Insomnia severity index		6.13	5.77	23.09	4.68	12.15	9.79
Sleep onset (time)	WD	22:38	00:55	00:29	00:45	23:17	01:14
Sleep onset (time)	WE	23:23	01:11	01:54	01:11	00:17	01:41
Sleep onset latency (mins)	WD	27.52	21.38	51.05	14.27	35.87	22.16
Sleep onset latency (mins)	WE	28.83	26.16	44.45	25.93	34.37	26.94
Sleep duration (mins)	WD	464.86	50.25	347.52	75.71	423.22	82.41
Sleep duration (mins)	WE	487.10	61.90	527.81	91.31	501.55	75.54

Key: HF healthy-fat, OB obese, OF over-fat, mins minutes, WD weekday, WE weekend

ISSN: 2731-913X