INS and diabetes mellitus: Diabetes duration (years) (OR = 1.02; [95% CI: 1.01–1.03] p = 0.001), HbA1c at baseline (OR 1.27; [95% CI: 1.10–1.46] p = 0.001), and insulin requirements (units/kg body weight) (OR = 13.99; 95% [CI: 5.63–34.77] p < 0.001) were also factors favoring poor control.