INS and diabetes mellitus: The study also found that being unmarried (AOR = 3.59, 95% CI (1.15-11.3), P = 0.028), increased educational level (AOR = 3.02, 95% CI (1.36-6.74), P = 0.007), and more years of treatment (AOR = 3.70, 95% CI (1.16-11.8), P = 0.027) were factors associated with good knowledge on insulin self-administration, whereas being a member of DM association (AOR = 3.57, 95% CI (1.66-7.69), P = 0.001) was the only factor associated with favorable attitude on insulin self-administration.