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Table 2 Logistic regression model for risk factors associated with prehypertension

From: Risk factors for prehypertension and their interactive effect: a cross- sectional survey in China

Variables Univariate analysis Multivariate analysis
OR 95%CI OR 95%CI
Gender
 Female 1.00(ref.) 1.00(ref.)
 Male 1.65 1.32–2.06 1.16 0.85–1.58
Age (years) 1.01 1.00–1.02 1.01 1.00–1.02
Educational level
 Elementary level or lower 1.00(ref.) 1.00(ref.)
 Middle school graduate 0.99 0.76–1.28 0.99 0.74–1.33
 High school graduate or higher 1.03 0.78–1.34 1.24 0.90–1.69
Marital status
 Currently married 1.00(ref.)   
 Currently not married 0.99 0.74–1.33 0.99 0.72–1.37
Income (yuan)
 0–2000 1.00(ref.) 1.00(ref.)
 2000–4000 1.18 0.95–1.48 0.98 0.76–1.27
  > 4000 1.25 0.76–2.07 0.87 0.49–1.53
 Smoking 1.81 1.42–2.30 1.67 1.22–2.29
 Family history of cardiovascular diseases 1.45 1.11–1.89 1.52 1.14–2.02
 General obesity 1.58 1.15–2.17 1.51 1.15–1.97
 Abdominal obesity 2.08 1.67–2.60 1.94 0.89–1.60
LAP
 Q1 1.00(ref.) 1.00(ref.)
 Q2 1.10 0.88–1.51 0.96 0.68–1.34
 Q3 1.69 1.24–2.31 1.32 0.93–1.87
 Q4 3.70 2.69–5.08 2.58 1.76–3.80