Quantification and Related Factors of Oversupply of Chronic Disease Medications in Japan.

2024年10月14日

■ 学会名
16th Asian Conference on Pharmacoepidemiology and 29th Japanese Conference on Pharmacoepidemiology joint meeting

■ 発表日
2024/10/14

■ 筆頭演者
Junko Tomida¹
1)Graduate School of Pharmaceutical Sciences, Tokushima Bunri University

■ 共同演者
Chihiro Wasa¹, Naomi Iihara²
1)The Lynch School of Education and Human Development, Boston College
2)Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University

■ 発表形態
Poster

■ 要旨
This study was conducted for patients aged ≥ 55 years who received major five classes of chronic disease medications in FY 2019. The proportion of oversupplied patients, and the excess days and costs of oversupplied medications were calculated. Logistic regression models were utilized to analyze related factors and causes of oversupply were classified by reviewing history of prescription and dispensing. The proportions of oversupplied patients and excessively oversupplied patients were approximately 16% and 1–2% for all medication classes, respectively. Notable related factors for all classes were greater frequency of early supply and inpatient prescription. The most prominent category of causes was ‘Early supply of medications prescribed by a single facility’, irrespective of classes.