背景：
　　遵從服藥是影響慢性病治療的的重要因素，為瞭解病人遵從行為，國內最常使用的測量方法則為病人訪談法，但其結果常會受題目或是訪談技巧、病人記億所影響。隨著資訊化的進步，保險申報資料不須額外耗費人力、物力就能獲得大量的資料。
目的：
　　本研究選擇不同的測量方法以健保資料庫資料發展遵從行為測量指標，希望能達到以下目的：（一）瞭解高血壓患者處方藥量足夠度及其相關因素，（二）瞭解高血壓患者處方藥量足夠度與門診就診次數之關係，（三）瞭解處方藥量足夠度不佳之高血壓患者特性，（四）發展高血壓病人處方藥量足夠度預測模型，以快速評估病人遵從行為，（五）發展簡易測量指標，提供健保局制定高血壓疾病管理之參考。
方法：
　　本研究資料為91年台南市特約醫事服務機構門診申報費用之高血壓患者所有開立降血壓藥物之處方。選取本（91）年第1次就醫時間為1月之病人為研究對象，每位病人研究期間均自91年1月至91年12月，觀察12個月，計48367人。
　　遵從性的測量採處方藥量足夠度，其計算公式為：處方藥量足夠度=該位高血壓患者於91年健保門診處方申報降血壓藥物總天數/365天。若處方藥量足夠度小於1，表示患者處方藥量不足；若處方藥量足夠度大於1，表示患者處方過多藥物。
結果︰
　　本研究高血壓患者之平均處方藥量足夠度為0.74，並以處方藥量
　　足夠度大於等於0.8之比率定義為遵從率，求得台南市高血壓患者藥物治療之遵從率為57.3%。
　　高血壓患者遵從行為影響因素包括性別、年齡、主要就醫院所層級別、科別、是否由同一醫師診治等。
　　高血壓患者以門診就診次數多（與≦5次相比）、男性、年齡大、主要就醫院所層級別為醫學中心與區域醫院（與未固定就醫院所者相比）及由同一醫師診治者，其遵從性較高。
　　而女性、投保身份類別為農漁民及工會會員、投保金額≦20000元或大於50000元之受雇者（與榮民或榮眷、低收入戶與地區人口相比）、主要就醫院所層級別為地區醫院或基層診所者（與未固定就醫院所者相比）、家醫科及一般內科、外科與其他科別，較不遵從。
　　高血壓患者門診就診次數可以預測處方藥量足夠度，以門診次數少且主要至區域醫院就診的情形預測力最佳，只需高血壓患者相關門診就診次數及年齡即可得知其處方藥量足夠度。
結論：
　　以處方藥量足夠度為遵從性之測量，本研究顯示南部地區高血壓患者之遵從性不佳。未來健保局高血壓疾病管理方案可以使用此指標進行管理決策參考。對於就診次數較少者，門診次數可以相當程度反應處方藥量足夠度。

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