新制醫院評鑑、處方警示系統、以及門診重複用藥率的相關性探討

Medication Duplication Rates in Outpatient Clinics before and after Implementation of a Prescribing Alert System as a New Criterion for Hospital Accreditation

10.6288/TJPH201433103003

郭昱君(Yu-Chun Kuo)；鄭守夏(Shou-Shia Cheng)；楊銘欽(Ming-Chin Yang)

新制醫院評鑑 ； 處方警示系統 ； 重複用藥 ； hospital accreditation ； prescribing alert system ； medication duplication

台灣公共衛生雜誌

33卷5期（2014 / 10 / 01）

523 - 529

繁體中文

目標：探討新制醫院評鑑納入處方警示系統項目與門診重複用藥率的變化情形。方法：資料來源是2005年百萬承保抽樣歸人檔，擷取2003－08年各年有18歲以上病人西醫門診處方案件之地區級以上醫院320家。重複用藥係指病人在重疊日期接受院內不同醫師開立之處方含ATC（Anatomical Therapeutic Chemical）前四碼相同藥品，院內重複用藥處方率=（院內重複用藥處方數／院內重疊日期處方數）*100%。新制醫院評鑑處方警示系統項目施行時間分為實施前（2003－04年，T0）、試辦期（2005－06年，T1）、實施後（2007－08年，T2）；其他控制因素包括醫院層級別、權屬別、醫院所屬分局別。統計方法為描述性統計與廣義估計方程式（GEE）。結果：新制醫院評鑑實施前平均院內重複用藥處方率是46.28%，試辦期40.23%，實施後32.95%。院內重複用藥相關因素分析在控制其他變項後發現，2005－06年（T1）的院內重複用藥處方率減少6.08個百分點（p=0.0008）；而2007－08年（T2）則減少13.13個百分點（p＜0.0001）。結論：新制醫院評鑑處方警示系統和院內門診重複用藥的改善有相關。

Objectives: To understand changes in the medication duplication rate after implementation of a prescribing alert system as a new criterion for hospital accreditation. Methods: We studied 320 general hospitals that provided prescriptions for outpatients aged 18 and older in 2003-2008 from the longitudinal NHI dataset. Medication duplication was defined as ＂a patient received drugs with the same therapeutic effect (as defined by level 3 of the Anatomical Therapeutic Chemical system) with different prescriptions provided by different physicians from the same hospital within one treatment period＂. Medication duplication rate = (cases of medication duplication) / (total number of prescription provided in a hospital within same treatment period) x 100%. There were three observation periods: before the new criterion for hospital accreditation was implemented (years 2003-04, T0), the period of pilot implementation (years 2005-06, T1), and after the new criterion for hospital accreditation was implemented (years 2007-08, T2). The data were adjusted for accreditation status, ownership, and branch of BNHI, and descriptive statistics and GEE were used in the analysis. Results: The average rate of medication duplication in hospitals was 46.28% in years 2003-04 (T0), 40.23% in years 2005-06 (T1), and 32.95% in years 2007-08 (T2). After controlling for other factors, the medication duplication rate decreased by 6.08 percentage points (p=0.0008) in years 2005-06 (T1), and 13.13 percentage points (p＜0.0001) in years 2007-08 (T2). Conclusion: The addition of an alert system for duplicate prescriptions as a criterion for hospital accreditation was associated with improvement in the medication prescribing practices in hospital outpatient departments.

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