國家衛生研究院 NHRI:Item 3990099045/10505

NHRI > National Institute of Environmental Health Sciences > Lukas Jyuhn-Hsiarn Lee > Periodical Articles > Item 3990099045/10505

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/10505

Title:	Estimating lifetime medical costs from censored claims data
Authors:	Hwang, JS;Hu, TH;Lee, LJH;Wang, JD
Contributors:	National Institute of Environmental Health Sciences
Abstract:	Claims databases consisting of routinely collected longitudinal records of medical expenditures are increasingly utilized for estimating expected medical costs of patients with a specific condition. Survival data of the patients of interest are usually highly censored, and observed expenditures are incomplete. In this study, we propose a survival-adjusted estimator for estimating mean lifetime costs, which integrates the product of the survival function and the mean cost function over the lifetime horizon. The survival function is estimated by a new algorithm of rolling extrapolation, aided by external information of age- and sex-matched referents simulated from national vital statistics. The mean cost function is estimated by a weighted average of mean expenditures of patients in a number of months prior to their death, of which the number could be determined by observed costs in their final months, and the weights depend on extrapolated hazards. We evaluate the performance of the proposed approach in comparison with that of a popular method using simulated data under various scenarios and 2 cohorts of intracerebral hemorrhage and ischemic stroke patients with a maximum follow-up of 13 years and conclude that our new method estimates the mean lifetime costs more accurately.
Date:	2017-12
Relation:	Health Economics. 2017 Dec;26(12):e332-e344.
Link to:	http://dx.doi.org/10.1002/hec.3512
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1057-9230&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000423095100021
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85019102695
Appears in Collections:	[Lukas Jyuhn-Hsiarn Lee] Periodical Articles

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