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Original Article

pnr. 2020; 11(1): 65-68

Assessing the adherence to insulin therapy and the effect of injection pain on insulin adherence among type 2 diabetes mellitus patients

Ehab Mudher Mikhael, Mohammed Hayder Al-Rubaye.


Background: Nearly all type 2 Diabetes Mellitus (DM) patients need eventual treatment with insulin at some point in their life. One of the major problems that lead to failure of insulin therapy is lacking medication adherence, which is common among type 2 DM patients. Therefore, this study aimed to assess adherence to insulin therapy and the effect of insulin injection pain on insulin adherence among type 2 DM patients. Methodology: A cross-sectional pilot study was conducted on a convenient sample of 63 type 2 DM patients at the National Diabetes Center, Baghdad, Iraq, from November 2018 till March 2019. A direct interview with each patient was conducted to assess the pain of injecting insulin through the use of a visual analog scale and to assess medication adherence using Medication Adherence Questionnaire, besides assessing patient's techniques to reduce the pain of injecting insulin. Results: The majority (81%) of the participants adhere to their insulin therapy; however, only a few (22.2%) of them adhere completely to their insulin therapy. There was a significant inverse correlation (R = −0.253; P = 0.045) between the degree of pain for injecting insulin with insulin adherence. In addition, the degree of pain reduced statistically significantly (R = −0.346; P = 0.005) by practicing proper injecting techniques; however, the practice of these techniques can only modestly improve patient adherence to insulin therapy (R = 0.214; P = 0.092). Conclusion: Improper practice of insulin-injecting techniques can lead to a greater degree of pain and eventually reduce adherence to insulin therapy.

Key words: Adherence, injection pain, insulin, Iraq, type 2 diabetes mellitus

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