MB and diabetes mellitus: Univariate linear regression analysis showed that myoglobin was negatively correlated with serum potassium (β=-0.31, p<0.01), and positively correlated with plasma aldosterone concentration (β=0.40; p<0.01) and ARR (β=0.37, p<0.01) in the PA group, while no significant correlation was found with age, SBP, DBP, DDD, duration of hypertension, the proportion of diabetes, preexisting CVD, target organ damage or serum creatinine concentration(p>0.05).