Table 3.

Bivariate correlation analysis of the dependent variables of microalbuminuria among subjects.

Dependent variables	Correlation coefficient (r)	Significance
Age (years)	−0.046	0.516
Gender	0.013	0.856
Social class	0.077	0.270
Previous hospitalization	−0.080	0.263
Systolic blood pressure	0.045	0.533
Diastolic blood pressure	0.037	0.607
Hemoglobin level	0.221	0.002
Serum creatinine	0.020	0.780
Glomerular filtration rate	−0.068	0.340