研究生: |
金志瑋 Chin, Chih-Wei |
---|---|
論文名稱: |
隨機臨床試驗中對平均反應持續時間的分層假說檢定 Stratified Hypothesis Testing of Mean Duration of Response in Randomized Clinical Trials |
指導教授: |
溫敏杰
Wen, Miin-Jye |
學位類別: |
碩士 Master |
系所名稱: |
管理學院 - 統計學系 Department of Statistics |
論文出版年: | 2023 |
畢業學年度: | 111 |
語文別: | 中文 |
論文頁數: | 32 |
中文關鍵詞: | 反應持續時間 、隨機效應 、加速失效時間模型 、假說檢定 |
外文關鍵詞: | duration of response, random effect, accelerated failure time model, hypothesis |
相關次數: | 點閱:36 下載:0 |
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隨著醫療技術的不斷進步,治療腫瘤的選擇越來越多元化。為了評估新的治療方法與傳統方法之間的差異,我們需要進行臨床試驗以驗證藥品的治療效果。常見的評估方法包括確定對治療有反應的患者比例以及評估患者反應持續時間。在進行研究時,我們考慮了不同醫院之間存在的變異性,將分層變量作為隨機效應解釋未被觀察或測量的特徵,並使用了具有隨機效應的加速失效時間模型來建立患者反應持續時間的模型。通過估計模型中的參數,我們可以推算出對治療有反應患者的期望反應持續時間。同時,將有反應患者的期望反應持續時間與反應率結合,得到了所有隨機患者的期望反應持續時間,利用它建立一個公正的假說檢定。為了比較我們的檢定方法與其他方法之間的差異,我們進行了模擬研究。根據模擬結果,我們提出的檢定方法相對保守,即使在存在有限制的情況下,這方法也表現出良好的測試結果。最後,我們以急性骨髓性白血病患者的資料作為實例進行了分析,來說明我們提出的檢定方法。
With the continuous advancement of medical technology, the options for treating tumors have become increasingly diversified. In order to evaluate the differences between new treatment methods and conventional methods, we need to conduct clinical trials to validate the therapeutic effects of drugs. Common evaluation methods include determining the proportion of patients who respond to the treatment and assessing the duration of patient response. In this study, we took into account the variability among different hospitals, treating stratified variables as random effects to explain unobserved or unmeasured characteristics. We used an accelerated failure time model with random effects to establish a model for the duration of patient response. By estimating the parameters in the model, we can infer the expected response duration for patients who respond to the treatment. Additionally, by combining the expected response duration of responsive patients with the response rate, we obtained the expected response duration for all randomized patients, which was used to establish a fair hypothesis test. In order to compare our testing method with other methods, we conducted a simulation study. It was observed that our proposed testing method is relatively conservative, and this method demonstrates good testing performance even in the presence of data limitations. Finally, we applied our method to analyze the data of patients with acute myeloid leukemia as an example.
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