PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO

Assuming a binary outcome, Logistic Regression is the most common approach to estimating odds ratio corresponding to continous predictor. We revisit a method termed the discriminant Function Approach, which leads to closed-form estimators and coresponding standard errors. In its most appealing impli...

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Main Authors: , LAILATUL MASFUFAH, , Prof. Dr. Sri Haryatmi, M.Sc.
Format: Thesis
Published: [Yogyakarta] : Universitas Gadjah Mada 2012
Subjects:
ETD
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author , LAILATUL MASFUFAH
, Prof. Dr. Sri Haryatmi, M.Sc.
author_facet , LAILATUL MASFUFAH
, Prof. Dr. Sri Haryatmi, M.Sc.
author_sort , LAILATUL MASFUFAH
collection UGM
description Assuming a binary outcome, Logistic Regression is the most common approach to estimating odds ratio corresponding to continous predictor. We revisit a method termed the discriminant Function Approach, which leads to closed-form estimators and coresponding standard errors. In its most appealing implication, we show that the approach suggests a multiple linier regression of the continuous predictor of interest on the outcome and other covariates, in place of the traditional logistic regression model. If standard diagnostic support the assumptions (including normality of errors) accompanying this linier regression model, the resulting estimator has demonstrable advantages over the usual maximum likelihood estimator via logistic regression. The include improvements in term of bias and efficiency based on unbiased estimator of the log odds ratio, as well as the availability of an estimate when logistic regression fails to converge due to a separation of data point. Use of the discriminant Function approach as described here for multivariable analysis requiresless stringent assumptions than those for which it was historically criticized, and is worth considering when odds ratio associated with particular continous predictor is of primary interest. Case studies illustrate these points.
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spelling oai:generic.eprints.org:990882016-03-04T08:47:25Z https://repository.ugm.ac.id/99088/ PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO , LAILATUL MASFUFAH , Prof. Dr. Sri Haryatmi, M.Sc. ETD Assuming a binary outcome, Logistic Regression is the most common approach to estimating odds ratio corresponding to continous predictor. We revisit a method termed the discriminant Function Approach, which leads to closed-form estimators and coresponding standard errors. In its most appealing implication, we show that the approach suggests a multiple linier regression of the continuous predictor of interest on the outcome and other covariates, in place of the traditional logistic regression model. If standard diagnostic support the assumptions (including normality of errors) accompanying this linier regression model, the resulting estimator has demonstrable advantages over the usual maximum likelihood estimator via logistic regression. The include improvements in term of bias and efficiency based on unbiased estimator of the log odds ratio, as well as the availability of an estimate when logistic regression fails to converge due to a separation of data point. Use of the discriminant Function approach as described here for multivariable analysis requiresless stringent assumptions than those for which it was historically criticized, and is worth considering when odds ratio associated with particular continous predictor is of primary interest. Case studies illustrate these points. [Yogyakarta] : Universitas Gadjah Mada 2012 Thesis NonPeerReviewed , LAILATUL MASFUFAH and , Prof. Dr. Sri Haryatmi, M.Sc. (2012) PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=54877
spellingShingle ETD
, LAILATUL MASFUFAH
, Prof. Dr. Sri Haryatmi, M.Sc.
PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title_full PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title_fullStr PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title_full_unstemmed PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title_short PENDEKATAN FUNGSI DISKRIMINAN UNTUK PENAKSIRAN ODDS RATIO
title_sort pendekatan fungsi diskriminan untuk penaksiran odds ratio
topic ETD
work_keys_str_mv AT lailatulmasfufah pendekatanfungsidiskriminanuntukpenaksiranoddsratio
AT profdrsriharyatmimsc pendekatanfungsidiskriminanuntukpenaksiranoddsratio