具共變量誤差之區間設限數據分析
學年 100
學期 1
出版(發表)日期 2011-08-01
作品名稱 具共變量誤差之區間設限數據分析
作品名稱(其他語言) Analysis of Interval-Censored Data with Mismeasured Covariates
著者 溫啟仲
單位 淡江大學數學學系
描述 計畫編號:NSC100-2118-M032-011
 研究期間:20110801~20120731
 研究經費:591,000
委託單位 行政院國家科學委員會
摘要 Covariate measurement error problems have been extensively studied in the context of right-censored data but less so for current status or interval-censored data. Motivated partly by the zebrafish basal cell carcinoma (BCC) study, where the occurrence time of BCC was only known to lie before or after a sacrifice time and where the covariate (Sonic hedgehog expression) was measured with error, we will propose a conditional score approach to the analysis of (case I / case k) interval-censored data with mismeasured covariates under the proportional odds model. The conditional score approach, originated by Stefanski and Carroll (1987), has the important advantage that it does not need a distributional assumption for unobserved error-prone covariate, rendering the proposed approach more robust and applicable compared to other strategies for handling measurement errors. 具共變量測量誤差之右設限數資料已被廣泛的研究,但對現狀或區間設限數據卻很 少研究。研究動機的一部分為斑馬魚之基底細胞癌的研究,其中研究者只知道細胞癌的 發生時間在獻祭時間之前或之後,而共變量Sonic hdgehog 基因表現存有量測誤差。因 此,我們對於具共變量測量誤差之(型I 或型k)區間設限資料,在正比例優劣比模型下, 將提出一個「條件分數法」來分析。條件分數法的重要優勢為不需對真實易有誤差卻未 見之共變量作一分佈假設,因此我們所提估計方法將相較其他處理測量誤差方法更具穩 健性。
關鍵字 有效分數; 現狀數據; 區間設限; 測量誤差; Conditional score; current status data; interval censoring; measurement error
語言 zh_TW
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