| 研究生: |
宋怡慧 Sung, Yi-Hui |
|---|---|
| 論文名稱: |
台灣失智症患者髖關節骨折發生率之研究 Incidence of hip fracture among patients with dementia in Taiwan: a nationwide population-based study |
| 指導教授: |
呂宗學
Lu, Tsung-Hsueh |
| 學位類別: |
碩士 Master |
| 系所名稱: |
醫學院 - 公共衛生學系 Department of Public Health |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 106 |
| 中文關鍵詞: | 失智症 、髖關節骨折 、發生率 |
| 外文關鍵詞: | Dementia, Hip fracture, Incidence |
| 相關次數: | 點閱:113 下載:8 |
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研究背景:過去研究顯示失智症患者有較高跌倒及髖關節骨折之風險,可惜至今尚無人口族群為基礎的髖關節骨折發生率之研究。
研究目的:估計失智症患者髖關節骨折之發生率與相對風險。
材料與方法:本研究為回溯性世代研究,資料來源是全民健保申報資料庫。失智症患者之個案定義為重大傷病檔登記失智症者,跌倒及髖關節骨折之確認主要依據出院診斷外因碼與主次診斷。首先計算失智症患者之年齡別性別髖關節骨折發生率與標準化發生比。接下來以百萬抽樣歸人檔,選取年齡與性別匹配之非失智症族群,估計失智症發生髖關節骨折的相對風險。
結果:台灣在1997-2008年間登記失智症重大傷病患共45,250位,納入本研究的個案數有40,860人,平均觀察人年為4.4人年。有2796位患者在研究期間發生髖關節骨折,女性1857位,男性839位。男女合計髖關節骨折發生率為每千人年15.4,女性為17.9,男性為12.1。發生率隨著年齡增加而增加,女性發生率最高的年齡組為80-84歲,男性為75-79歲。與台灣老年人口比較,失智症患者髖關節骨折的標準化發生比,男女合計為1.15 (95%信賴區間1.09-1.21),女性為1.21 (95%信賴區間1.13-1.29),男性為1.22 (95%信賴區間1.15-1.29)。第二部份使用百萬歸人檔,失智症患觀察樣本共1668人,非失智症8340人。在共病與年齡性別差異的校正後,失智症患者髖關節骨折發生率比為1.94 (95%信賴區間1.56-2.41)。
結論:本研究為人口族群基礎估計失智症患者的髖關節骨折發生率,低於過去以機構為樣本的發生率。本研究的限制是無法區分不同嚴重程度失智症,這是未來研究應該進一步釐清的重點。
Background: Previous studies have suggested that patients with dementia have higher risk of hip fracture. However, no population-based study examined the incidence of hip fracture among patients with dementia.
Objective: To estimate the incidence and relative risk of hip fracture among patients with dementia.
Methods: A retrospective cohort study was conducted using claims data of National Health Insurance. We included only patients receiving catastrophic illness card for dementia between 1997 and 2008. Patients with hip fracture were identified through discharge diagnosis. We calculated incidence rate and standardized incidence ratio (SIR) of hip fractures among patients with dementia. To determine the relative risk of dementia we compared the incidence of hip fracture among patients with dementia and patients without dementia.
Results: There were 45,250 patients applied the catastrophic illness card for dementia between 1997 and 2008 and 40,860 patients aged 50 and older with sufficient information were included in this study with average 4.4 person-years of follow-up. A total of 2796 patients sustained hip fracture during the study period, 1857 were women and 839 were men. The incidence rate was 15.4 per 1000 person-years and 17.9 for women and T12.1 for men. The incidence rate of hip fracture increased with age. The rate was highest among women aged 80-84 years and men aged 75-79 years. Compared with general population, the SIR of hip fracture among patients with dementia was 1.15 (95% CI 1.09-1.21) and 1.21 (95% CI 1.13-1.29) for women and 1.22 (95% CI 1.10-1.34) for men. Compare to age-sex-matched non-dementia patients (n=8340), patients with dementia (n=1668) are more likely to have hip fracture, the adjusted rate ratio of hip fracture was 1.94 (95%CI=1.56-2.41)
Conclusion: The population-based incidence of hip fracture among patients with dementia estimated in this study was lower than incidence rate estimated in previous studies and most of them were institution-based studies. One of the limitations of this study was that we could not stratify the incidence rate by severity and stage of dementia, which should be the focus of future studies.
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