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- Title
Cross-ratio estimation for bivariate failure times with left truncation.
- Authors
Hu, Tianle; Lin, Xihong; Nan, Bin
- Abstract
The cross-ratio is an important local measure that characterizes the dependence between bivariate failure times. To estimate the cross-ratio in follow-up studies where delayed entry is present, estimation procedures need to account for left truncation. Ignoring left truncation yields biased estimates of the cross-ratio. We extend the method of Hu et al., Biometrika 98:341-354 () by modifying the risk sets and relevant indicators to handle left-truncated bivariate failure times, which yields the cross-ratio estimate with desirable asymptotic properties that can be shown by the same techniques used in Hu et al., Biometrika 98:341-354 (). Numerical studies are conducted.
- Subjects
NUMERICAL analysis; MULTIVARIATE analysis; ESTIMATION theory; FAILURE time data analysis; RIGHT censoring (Statistics); MATHEMATICAL analysis
- Publication
Lifetime Data Analysis, 2014, Vol 20, Issue 1, p23
- ISSN
1380-7870
- Publication type
Article
- DOI
10.1007/s10985-013-9263-7