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Table 5 Associations between categories of BMI, WC and prehypertension and hypertension (univariate and multivariate analyses)

From: Association between obesity and high blood pressure among Lithuanian adolescents: a cross-sectional study

Variables Prehypertension Hypertension
OR(95% CI) aOR1(95% CI) OR(95% CI) aOR1(95% CI)
Boys     
BMI categories:     
Normal weight 1.00 1.00 1.00 1.00
Overweight 2.27 (1.72–2.99) 2.85(2.12–3.84) 3.29(2.65–4.08) 3.83(3.06–4.79)
Obesity 3.32(1.78–6.21) 4.46(2.27–8.75) 5.55(3.37–9.12) 6.52(3.91–10.88)
WC percentile categories:     
<75th 1.00 1.00 1.00 1.00
75th– < 90th 2.76(1.98–3.85) 3.80(2.64–5.46) 3.73(2.86–4.87) 4.67(3.53–6.16)
≥90th 4.44(2.13–9.26) 6.10(2.76–13.45) 7.61(4.16–13.89) 9.95(5.37–18.42)
Girls     
BMI categories:     
Normal weight 1.00 1.00 1.00 1.00
Overweight 2.43(1.81–3.27) 2.52(1.87–3.40) 3.35(2.64–4.26) 3.40(2.67–4.33)
Obesity 4.71(2.63–8.43) 5.17(2.86–9.32) 6.50(3.98–10.61) 6.67(4.08–10.91)
WC percentile categories:     
<75th 1.00 1.00 1.00 1.00
75th– < 90th 2.49(1.70–3.66) 2.70(1.83–3.99) 3.13(2.28–4.30) 3.23(2.35–4.45)
≥90th 1.85NS(0.80–4.28) 2.41(1.03–5.61) 5.28(3.09–9.03) 5.56(3.24–9.53)
  OR(95% CI) aOR 2 (95% CI) OR(95% CI) aOR 2 (95% CI)
All participants     
BMI categories:     
Normal weight 1.00 1.00 1.00 1.00
Overweight 2.41(1.97–2.94) 2.62(2.13–3.23) 3.45(2.95–4.04) 3.56(3.02–4.19)
Obesity 3.98(2.60–6.09) 4.81(3.08–7.52) 6.04(4.28–8.51) 6.64(4.65–9.49)
WC percentile categories:     
<75th 1.00 1.00 1.00 1.00
75th– < 90th 2.76(2.15–3.53) 3.16(2.43–4.10) 3.73(3.06–4.55) 3.92(3.18–4.82)
≥90th 2.97(1.76–5.01) 4.08(2.35–7.10) 6.21(4.23–9.13) 7.41(4.97–11.05)
  1. BMI – body mass index, WC – waist circumference.
  2. OR – odds ratio; aOR1 – adjusted odds ratio for age; aOR2 – adjusted odds ratio for age and sex; CI – confidence interval.
  3. All results were significant at p < 0.001, except when noted (NS – not significant).
  4. The overall significance levels of the multiple logistic regression models were p < 0.001.