Independent predictors of nonadherence included upper-middle socioeconomic status (adjusted odds ratio [AOR] 2.11; 95% CI 1.07-4.15; <i>P</i> = 0.031), type 2 diabetes (AOR 2.23; 95% CI 1.20-4.14; <i>P</i> = 0.011), lack of insulin storage (AOR 4.72; 95% CI 2.28-9.76; <i>P</i> < 0.001), polypharmacy (AOR 4.00; 95% CI 0.99-16.14; <i>P</i> = 0.046), and poor lifestyle adherence (AOR 1.62; 95% CI 0.95-2.77; <i>P</i> = 0.047). This evidence concerns the gene INS and type 2 diabetes mellitus.