Table 1 Clinical characteristics of the study subjects

From: Relation between the angiotensin-converting enzyme insertion/deletion polymorphism and blood pressure in Japanese male subjects

  All subjects Hypertensive subjects Normotensive subjects P
Number 706 203 (28.8%) 503 (71.2%)  
Age, mean (years) 52.1±0.3 53.6±0.6 51.5±0.4 0.002
Age, range (years) 31–87 33–87 31–72
Height (cm) 167.0±0.3 166.3±0.4 167.3±0.3 0.095
Weight (kg) 67.6±0.3 69.4±0.7 66.9±0.4 0.001
BMI (kg/m2) 24.2±0.1 25.0±0.2 24.0±0.2 0.011
Smoking (%) 38.5 33.5 41.9 0.023
Drinking (%) 52.0 62.0 45.3 <0.0001
Anti-HT drugs (%) 13.3 33.1 0 <0.0001
SBP (mmHg) 127.2±0.7 144.3±1.1 120.3±0.6 <0.0001
DBP (mmHg) 82.2±0.5 93.8±0.7 77.5±0.4 <0.0001
Haematocrit (%) 46.0±0.1 46.9±0.2 45.7±0.1 <0.0001
Uric acid (μmol/l) 342±3 356±5 337±3 0.001
Creatinine (μmol/l) 67.7±0.4 69.0±1.0 67.3±0.5 0.084
TC (mmol/l) 5.11±0.03 5.08±0.06 5.12±0.04 0.519
TG (mmol/l) 1.67±0.04 1.69±0.07 1.66±0.05 0.790
HDL-C (mmol/l) 1.39±0.01 1.37±0.02 1.39±0.02 0.434
Fasting PG (mmol/l) 5.67±0.05 5.77±0.08 5.63±0.06 0.175
2 h PG (mmol/l) 6.97±0.08 7.48±0.16 6.76±0.08 <0.0001
  1. BMI=body mass index; anti-HT=antihypertensive; SBP=systolic blood pressure; DBP=diastolic blood pressure; TC=total cholesterol; TG=triglycerides; HDL-C=high-density lipoprotein cholesterol; PG=plasma glucose: 2 h PG=plasma glucose 2 h after oral administration of 75 g of glucose.
  2. P-value is for contrast of means or percentages between the hypertensive and normotensive subjects.