2.4. Statistical Analysis
Univariate analysis was used to identify the associa-tion between independent factors and microalbuminuria. Stepwise logistic regressions were used to define associ-ated factors with microalbuminuria in type 2 diabetes after adjusting for covariate factors. Regression coeffi-cients were transformed into item scores and added up to a total score [15]. The factor of microalbuminuria was analyzed using total scores as the only predictor.
The scoring scheme accuracy was present with an area under the receiver operating characteristic (ROC) curve. The risk scoring scheme was validated with the valida-tion set. Another independent set of microalbuminuria cases referred from the tertiary hospital were also evalu-ated for risk scores. The level of significance was set at p-Value 0.05.