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Table 1 Baseline clinical characteristics of participants

From: Hypovolaemia was associated with clustering of major cardiovascular risk factors in general population

  Male Female P
Number (n, %) 5467 (69.2) 2433 (30.8) /
Age (years) 38.8 ± 8.5 37.4 ± 7.3 < 0.001
Height (cm) 172.7 ± 6.0 161.1 ± 5.3 < 0.001
BW (kg) 76.9 ± 11.6 58.8 ± 8.6 < 0.001
BMI ( kg/m2) 25.8 ± 3.5 22.7 ± 3.1 < 0.001
Clinical findings    
  SBP (mmHg) 131.7 ± 15.7 118.6 ± 13.8 < 0.001
  DBP (mmHg) 78.5 ± 12.2 70.9 ± 10.0 < 0.001
  Hypertension (n,%) 1369 (25.2) 169 (7.0) < 0.001
  Diabetes (n, %) 336 (6.2) 31(1.3) < 0.001
  Overweight (n, %) 3714 (68.8) 710 (29.6) < 0.001
  Dyslipidemia (n, %) 2965 (55.0) 608 (25.5) < 0.001
  HBsAg (n, %) 168 (3.5) 42 (2.0) 0.001
  Serum uric acid (μmol/L) 353.1 ± 82.7 220.4 ± 58.8 < 0.001
  Blood glucose (mmol/L) 5.6 ± 1.2 5.2 ± 0.8 < 0.001
  Hemoglobin (g/L) 151.6 ± 9.2 126.5 ± 12.0 < 0.001
  Hct % 44.2 ± 2.6 37.5 ± 3.1 < 0.001
  eGFR (ml/min/1.73 m2) 105.1 ± 12.6 104.1 ± 14.1 0.002
Body fluid composition    
  TBW (L) 43.3 ± 5.1 30.7 ± 3.4 < 0.001
  ICW (L) 29.2 ± 3.5 20.6 ± 2.3 < 0.001
  ECW (L) 14.1 ± 1.8 10.1 ± 1.1 < 0.001
  NECW (L/m)) 8.1 ± 0.9 6.3 ± 0.6 < 0.001
  LBM (kg) 59.1 ± 7.0 41.9 ± 4.6 < 0.001
  ECW/TBW 0.32 ± 0.01 0.33 ± 0.01 < 0.001
  TBW waston (L) 50.4 ± 4.3 34.9 ± 3.1 < 0.001
  TBW/TBW watson 0.86 ± 0.05 0.88 ± 0.04 0.001
  DMI (kg/m2) 11.3 ± 2.4 10.8 ± 2.3 < 0.001
CVD risk factor (n, %)    < 0.001
  None 969 (18.3) 1269 (54.1) /
  Single 1547 (29.2) 746 (31.8) /
  Cluster 2791 (52.6) 329 (14.0) /
Arterial stiffness    
cfPWV (cm/s) 1379.2 ± 171.1 1256.0 ± 139.5 < 0.001
  1. Abbreviations: BW, body weight; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; Hb, hemoglobin; Hct, hematocrit; eGFR, estimated glomerular filtration rate; CVD, cardiovascular disease; TBW, total body water; ICW, intracellular water; ECW, extracellular water; NECW, normalization extracellular water; LBM, lean body mass; DMI, dry mass index; cfPWV, carotid-femoral pulse wave velocity.