Older age (AOR: 2.46, 95% CI: 1.28–6.01), DM duration of > 10 years (AOR: 3.15, 95% CI: 2.22–6.54), insulin therapy (AOR: 3.07, 95% CI: 2.10–6.12), poor diet compliance (AOR: 1.97, 95% CI: 1.28–3.52) and failure to set goals for glycemic control (AOR: 3.42, 95% CI: 2.17–5.97) were factors associated with inadequate and poor glycemic control. Here, INS is linked to diabetes mellitus.