Table 1

Clinical characteristics of the study population

Mean±SD, or n (%)P value*
Northern subjects
Southern subjects
Age, years59.1±8.660.4±8.60.449
Male, sex45 (71.4)38 (67.9)0.672
Body mass index, kg/m2 24.7±3.123.0±2.90.002
 Height, cm169.3±5.7165.3±6.70.001
 Weight, kg71.0±10.462.8±8.5<0.001
History of smoking35 (55.6)20 (35.7)0.030
History of hypertension40 (63.5)41 (73.2)0.256
Systolic blood pressure, mm Hg149.6±25.6148.0±22.20.994
Diastolic blood pressure, mm Hg89.4±14.087.4±12.10.453
History of hyperlipidaemia30 (47.6)28 (50.0)0.795
 LDL-C, mmol/L3.18±0.903.17±1.09>0.99
 HDL-C, mmol/L1.24±0.971.20±0.290.300
 TC, mmol/L4.69±1.194.84±1.280.598
 TG, mmol/L1.70±1.081.58±0.910.747
History of diabetes mellitus13 (20.6)22 (39.3)0.026
History of coronary heart disease9 (14.3)3 (5.4)0.106
Statin use19 (30.2)24 (42.9)0.150
Antihypertension medication use29 (46.0)30 (53.6)0.412
  • *P values were calculated by Mann-Whitney U test or χ2 test.

  • HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; TC, total cholesterol; TG, triglyceride.