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

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

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