Table 5.

Multiple regression models of diastolic blood pressure on related independent variables in Korean adults aged 19~49 years

BMI : body mass index

All model were adjusted for energy intake, smoking (non-smoker = 1, ex-smoker = 2, current smoker = 3), alcohol drinker (1 = non-drinker, 2 = drinker), and drug treatment (no = 1, yes = 2).

In model 1 of multiple linear regression, dependent variable was diastolic blood pressure and independent variables were age, sex (male = 1, female = 2), BMI, sodium and potassium intake. Model 2 was the same as model 1 except that potassium intake was replaced with calcium. Model 3 was the same as model1 except that BMI and potassium intake was replaced with weight and waist circumference, respectively. In model 4, two additional variables, that is, potassium and calcium intake, were added to model 3.