Fig. 4From: Association of endothelin-1 and matrix metallopeptidase-9 with metabolic syndrome in middle-aged and older adultsCorrelation analysis of serum level of ET-1 to parameters of metabolic syndrome. a Correlation between serum level of ET-1 and systolic blood pressure. b Correlation between serum level of ET-1 and diastolic blood pressure. c Correlation between serum level of ET-1 and waist circumference. d Correlation between serum level of ET-1 and blood triglycerides. e Correlation between serum level of ET-1 and blood HDL-C. f Correlation between serum level of ET-1 and fasting blood glucose. g Correlation between serum level of ET-1 and age. Pearson’s correlation analysis was performed. Statistical significance was accepted at p < 0.05. Black diamond refers to the data of MetS-positive subjects. Open triangle refers to the data of MetS-negative subjectsBack to article page