INS and diabetes mellitus: Years after the onset of Diabetes were similar in the three groups [F(2,90)=0,401, P=0.671]; however type of treatment showed statistical differences for insulin [χ2(2)=8.22, P=0.0164], metformin [χ2(2)=16.82, P=0.0002], and other drugs used for diabetes co-morbidity [χ2(2)=11.21, P=0.0037], but not for glibenclamide [χ2(2)=0.17, P=0.918] (Table 2).