Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation
The statistical problem considered in this article is the parametric treatment comparison when partly interval-censored failure time data exist. Partly interval-censored failure time data are composed of exact observations and interval-censored observations. This phenomenon often occurs in clinical...
| Main Authors: | , |
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| Format: | Article |
| Language: | English English |
| Published: |
Asian Network for Scientific Information
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30219/ http://psasir.upm.edu.my/id/eprint/30219/1/Parametric%20tests%20for%20partly%20interval.pdf |
| _version_ | 1848846615538827264 |
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| author | Mohammad Alharpy, Azzah Ibrahim, Noor Akma |
| author_facet | Mohammad Alharpy, Azzah Ibrahim, Noor Akma |
| author_sort | Mohammad Alharpy, Azzah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The statistical problem considered in this article is the parametric treatment comparison when partly interval-censored failure time data exist. Partly interval-censored failure time data are composed of exact observations and interval-censored observations. This phenomenon often occurs in clinical trials and health studies that require periodic following up with patients. The authors constructed a score test and likelihood ratio test for this type of failure time data under Weibull distributions using multiple imputation technique. A simulation study and a modified secondary data set from breast cancer study are used to assess the proposed test and illustrate the differences between the two tests. The results indicate that the presented procedure works well for both tests, but the likelihood ratio test is better than the score test in certain situations. |
| first_indexed | 2025-11-15T09:05:32Z |
| format | Article |
| id | upm-30219 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:05:32Z |
| publishDate | 2013 |
| publisher | Asian Network for Scientific Information |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-302192015-10-08T06:43:20Z http://psasir.upm.edu.my/id/eprint/30219/ Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation Mohammad Alharpy, Azzah Ibrahim, Noor Akma The statistical problem considered in this article is the parametric treatment comparison when partly interval-censored failure time data exist. Partly interval-censored failure time data are composed of exact observations and interval-censored observations. This phenomenon often occurs in clinical trials and health studies that require periodic following up with patients. The authors constructed a score test and likelihood ratio test for this type of failure time data under Weibull distributions using multiple imputation technique. A simulation study and a modified secondary data set from breast cancer study are used to assess the proposed test and illustrate the differences between the two tests. The results indicate that the presented procedure works well for both tests, but the likelihood ratio test is better than the score test in certain situations. Asian Network for Scientific Information 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30219/1/Parametric%20tests%20for%20partly%20interval.pdf Mohammad Alharpy, Azzah and Ibrahim, Noor Akma (2013) Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation. Journal of Applied Sciences, 13 (4). pp. 621-626. ISSN 1812-5654; ESSN: 1812-5662 http://scialert.net/archivedetails.php?issn=1812-5654&issueno=204 10.3923/jas.2013.621.626 English |
| spellingShingle | Mohammad Alharpy, Azzah Ibrahim, Noor Akma Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title | Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title_full | Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title_fullStr | Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title_full_unstemmed | Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title_short | Parametric tests for partly interval-censored failure time data under Weibull distribution via multiple imputation |
| title_sort | parametric tests for partly interval-censored failure time data under weibull distribution via multiple imputation |
| url | http://psasir.upm.edu.my/id/eprint/30219/ http://psasir.upm.edu.my/id/eprint/30219/ http://psasir.upm.edu.my/id/eprint/30219/ http://psasir.upm.edu.my/id/eprint/30219/1/Parametric%20tests%20for%20partly%20interval.pdf |