Medication adherence and glycemic control among newly diagnosed diabetes patients

被引:77
|
作者
Lin, Lee-Kai [1 ]
Sun, Yan [1 ]
Heng, Bee Hoon [1 ]
Chew, Daniel Ek Kwang [2 ,3 ,4 ]
Phui-Nah Chong [5 ]
机构
[1] Natl Healthcare Grp, Hlth Serv & Outcomes Res, Singapore, Singapore
[2] Tan Tock Seng Hosp, Dept Endocrinol, Singapore, Singapore
[3] Nanyang Technol Univ, Lee Kong Chian Sch Med, Singapore, Singapore
[4] Natl Univ Singapore, Yong Loo Lin Sch Med, Singapore, Singapore
[5] Natl Healthcare Grp Polyclin, Singapore, Singapore
关键词
D O I
10.1136/bmjdrc-2017-000429
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background Poor medication adherence can have negative consequences for the patients, the provider, the physician, and the sustainability of the healthcare system. To our knowledge, the association between medication adherence and glycemic control among newly diagnosed diabetes patients has not been studied. This study aims to bridge the gap. Method This is a retrospective cohort study of 2463 patients managed in the National Healthcare Group in Singapore with newly diagnosed diabetes. Patients were followed up for the first two years from their first medication dispensed for measuring medication adherence, proportion of days covered (PDC); and for another three years for investigating outcomes of glycemic control, emergency department visit, and hospitalization. Multivariable regressions were performed to study the association between medication adherence and the outcomes as well as the risk factors of poor adherence. Results The prevalence of medication adherence (PDC=80%) was 65.0% (95% CI 63.1% to 66.9%) among newly diagnosed diabetes patients in Singapore. Male, Indian, or patients without hypertension or dyslipidemia were associated with poorer medication adherence. The HbA1c level of poor adherent patients (PDC <40%) increased by 0.4 (95% CI 0.2 to 0.5) over the two years, and they were also more likely to have hospitalization (OR 2.6,95% CI 1.7 to 3.8) or emergency department visit (OR 2.4,95% CI 1.7 to 3.4) compared with the fully adherent patients (PDC=100%). Conclusions The medication adherence in the early stage of diabetes is important for maximizing the effectiveness of pharmaceutical therapy. Health policies or interventions targeting the improvement of medication adherence among newly diagnosed diabetes patients are in need.
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页数:9
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