Bias correction via outcome reassignment for cross-sectional data with binary disease outcome.

Autor: Wang MC; Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA. mcwang@jhu.edu., Zhu Y; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, USA.
Jazyk: angličtina
Zdroj: Lifetime data analysis [Lifetime Data Anal] 2022 Oct; Vol. 28 (4), pp. 659-674. Date of Electronic Publication: 2022 Jun 24.
DOI: 10.1007/s10985-022-09559-3
Abstrakt: Cross-sectionally sampled data with binary disease outcome are commonly analyzed in observational studies to identify the relationship between covariates and disease outcome. A cross-sectional population is defined as a population of living individuals at the sampling or observational time. It is generally understood that binary disease outcome from cross-sectional data contains less information than longitudinally collected time-to-event data, but there is insufficient understanding as to whether bias can possibly exist in cross-sectional data and how the bias is related to the population risk of interest. Wang and Yang (2021) presented the complexity and bias in cross-sectional data with binary disease outcome with detailed analytical explorations into the data structure. As the distribution of the cross-sectional binary outcome is quite different from the population risk distribution, bias can arise when using cross-sectional data analysis to draw inference for population risk. In this paper we argue that the commonly adopted age-specific risk probability is biased for the estimation of population risk and propose an outcome reassignment approach which reassigns a portion of the observed binary outcome, 0 or 1, to the other disease category. A sign test and a semiparametric pseudo-likelihood method are developed for analyzing cross-sectional data using the OR approach. Simulations and an analysis based on Alzheimer's Disease data are presented to illustrate the proposed methods.
(© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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