Table 3 Characteristics of hypertensive subjects stratified by genotypes of the Arg347Cys polymorphism in the ADRA1A gene

From: Arg347Cys polymorphism of α1A-adrenoceptor gene is associated with blood pressure response to nifedipine GITS in Chinese hypertensive patients

  Genotypes of ADRA1A gene
Characteristics Arg/Arg (n=352) Arg/Cys+Cys/Cys (n=89)
Age (years) 52.5±5.6 51.1±5.6*
Body mass index (kg m−2) 23.4±3.3 23.4±3.1
Baseline SBP (mm Hg) 164.5±15.1 165.1±15.9
Baseline DBP (mm Hg) 91.4±9.2 91.7±10.0
Drug concentration (μg l−1) 33.7±27.8 38.6±25.2
Drug concentration (log transformed), μg l−1 3.2±0.8 3.4±0.7*
Female (%) 74.1 79.8
Smoking (%) 18.2 13.5
Drinking (%) 12.2 5.6
  1. Abbreviations: DBP, diastolic blood pressure; SBP, systolic blood pressure.
  2. *P<0.05.