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Table 1 Demographic data

From: A simple questionnaire to detect chronic kidney disease patients from Long An province screening data in Vietnam

Variable N Mean ± SD or %
Age (years) 2037 42.3 ± 14.2
 19 to 29 423 20.8%
 30 to 39 604 29.6%
 40 to 49 367 18.0%
 50 to 59 385 18.9%
 60 to 69 167 8.2%
 More than 70 91 4.5%
Men (n, %) 929 45.6%
Height (cm) 2037 158.5 ± 8.2
Weight (kg) 2037 54.9 ± 9.6
Body mass index (kg/m2) 2037 21.5 ± 3.3
Waist circumference (cm) 2037 74.1 ± 9.1
Hip circumference (cm) 2037 88.8 ± 7.0
Waist hip ratio 2037 0.82 ± 0.1
Increased waist circumference (n, %) 323 15.8%
Hypertension on screening (n, %) 577 28.3%
Mean blood pressure (mmHg) 2037 95.4 ± 13.5
Serum creatinine (mg/dL) 2037 0.89 ± 0.29
eGFR MDRD (ml/min/1.73 m2) 2037 87.7 ± 15.8
Albumin/creatinine ratio (mg/g)* 2037 8.89 [4.75, 15.38]
  1. Body mass index = Weight (Kg)/(Height)(m)2, Waist hip ratio = Waist (cm)/hip (cm), Increased waist circumference was defined by waist circumference > 90 cm (men) or > 80 cm (women), Hypertension at screening was defined as mean systolic blood pressure ≥ 140 mmHg, or diastolic blood pressure ≥ 90 mmHg on three measurements
  2. * Median [25%, 75%]