Median regression with censored cost data

Heejung Bang, Anastasios A. Tsiatis

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

Because of the skewness of the distribution of medical costs, we consider modeling the median as well as other quantiles when establishing regression relationships to covariates. In many applications, the medical cost data are also right censored. In this article, we propose semiparametric procedures for estimating the parameters in median regression models based on weighted estimating equations when censoring is present. Numerical studies are conducted to show that our estimators perform well with small samples and the resulting inference is reliable in circumstances of practical importance. The methods are applied to a dataset for medical costs of patients with colorectal cancer.

Original languageEnglish (US)
Pages (from-to)643-649
Number of pages7
JournalBiometrics
Volume58
Issue number3
StatePublished - Sep 2002
Externally publishedYes

Fingerprint

Median Regression
Costs and Cost Analysis
Costs
colorectal neoplasms
Weighted Estimating Equations
Colorectal Cancer
Skewness
Censoring
Quantile
Small Sample
Covariates
Numerical Study
Colorectal Neoplasms
Regression Model
Regression
Model-based
Estimator
Modeling
sampling
methodology

Keywords

  • Cost analysis
  • Estimating equation
  • Median regression
  • Simulated annealing
  • Survival analysis

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Public Health, Environmental and Occupational Health
  • Agricultural and Biological Sciences (miscellaneous)
  • Applied Mathematics
  • Statistics and Probability

Cite this

Bang, H., & Tsiatis, A. A. (2002). Median regression with censored cost data. Biometrics, 58(3), 643-649.

Median regression with censored cost data. / Bang, Heejung; Tsiatis, Anastasios A.

In: Biometrics, Vol. 58, No. 3, 09.2002, p. 643-649.

Research output: Contribution to journalArticle

Bang, H & Tsiatis, AA 2002, 'Median regression with censored cost data', Biometrics, vol. 58, no. 3, pp. 643-649.
Bang H, Tsiatis AA. Median regression with censored cost data. Biometrics. 2002 Sep;58(3):643-649.
Bang, Heejung ; Tsiatis, Anastasios A. / Median regression with censored cost data. In: Biometrics. 2002 ; Vol. 58, No. 3. pp. 643-649.
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