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KMID : 1039020220450020035
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The Ewha Medical Journal
2022 Volume.45 No. 2 p.35 ~ p.45
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Medication Adherence in Korean Patients with Inflammatory Bowel Disease and Its Associated Factors
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Oh Kyung-Hwan
Kwon Eun-Ja
Kim Jeong-Hye
Kim Kyu-Won
Lee Jae-Yong
Hong Hee-Seung
Hong Seung-Wook
Park Jin-Hwa
Hwang Sung-Wook
Yang Dong-Hoon
Ye Byong-Duk
Byeon Jeong-Sik
Myung Seung-Jae
Yang Suk-Kyun
Park Jeong-Yun
Park Sang-Hyoung
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Abstract
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Objectives: It is important that inflammatory bowel disease (IBD) patients adhere to their prescribed medication regimens to avoid the repeat exacerbations, complications, or surgeries associated with this disorder. However, there are few studies on medication adherence in patients with IBD, especially in Asian populations. So, we analyzed the factors associated with medication adherence in Korean IBD patients.
Methods: Patients who had been diagnosed with Crohn’s disease (CD) or ulcerative colitis (UC) more than 6 months previously and receiving oral medications for IBD were enrolled. Medication adherence was measured using the Medical Adherence Reporting Scale (MARS-5), a self-reported medication adherence measurement tool.
Results: Among 207 patients in the final study population, 125 (60.4%) had CD and 134 (64.7%) were men. The mean age was 39.63 years (SD, 13.16 years) and the mean disease duration was 10.09 years (SD, 6.33 years). The mean medication adherence score was 22.46 (SD, 2.86) out of 25, and 181 (87.4%) patients had score of 20 or higher. In multiple linear regression analysis, self-efficacy (β=0.341, P<0.001) and ≥3 dosing per day (β=-0.192 P=0.016) were revealed to be significant factors associated with medication adherence. Additionally, there was a positive correlation between self-efficacy and medication adherence (r=0.312, P<0.001). However, disease related knowledge, depression, and anxiety were not significantly associated with medication adherence.
Conclusion: To improve medication adherence among patients with IBD, a reduction in the number of doses per day and an improved self-efficacy will be helpful.
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KEYWORD
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Inflammatory bowel diseases, Medication adherence, Self efficacy, Korea
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