Associations of short sleep duration with prehypertension and hypertension among Lithuanian children and adolescents: a cross-sectional study

Table 4 Associations between sleep durations and prehypertension and hypertension by sex (univariate and multivariate analyses)

Variables	Normal BP		Prehypertension				Hypertension
	n	%	n	%	OR (95% CI)	aOR¹(95% CI)	n	%	OR (95% CI)	aOR¹(95% CI)
*Boys:*
Sleep duration (h/day):
≥8	1424	80.5	316	66.5	1.00	1.00	612	64.8	1.00	1.00
7– < 8	229	12.9	112	23.6	2.20 (1.71–2.85)	1.86 (1.41–2.44)	235	24.9	2.39 (1.95–2.93)	2.13 (1.72–2.65)
<7	117	6.6	47	9.9	1.81* (1.26–2.59)	1.49* (1.01–2.19)	97	10.3	1.93 (1.45–2.57)	1.70* (1.26–2.31)
*Girls:*
Sleep duration (h/day):
≥8	1982	72.5	213	53.3	1.00	1.00	335	54.3	1.00	1.00
7– < 8	567	20.7	122	30.4	2.00 (1.57–2.55)	1.81 (1.41–2.32)	189	30.6	1.97 (1.61–2.41)	2.00 (1.62–2.46)
<7	185	6.8	65	16.3	3.27 (2.38–4.48)	3.01 (2.17–4.18)	93	15.1	2.97 (2.26–3.92)	3.07 (2.31–4.09)

OR – crude odds ratio; aOR¹ – adjusted odds ratios for age, body mass index, physical activity, and smoking; CI – confidence interval.
All results were significant at P < 0.001, except when noted (* – P < 0.05).

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