Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Jun 1;3(6):e206976.
doi: 10.1001/jamanetworkopen.2020.6976.

Assessment of Temporal Selection Bias in Genomic Testing in a Cohort of Patients With Cancer

Affiliations

Assessment of Temporal Selection Bias in Genomic Testing in a Cohort of Patients With Cancer

Kenneth L Kehl et al. JAMA Netw Open. .

Abstract

This cohort study assesses for temporal selection bias in patients with lung, breast, colorectal, pancreatic, or urothelial cancer from a single institution who had tumor profiling using a next-generation sequencing protocol between 2013 and 2017.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest Disclosures: Dr Kehl reported serving as a consultant/advisor to and receiving personal fees from Aetion outside the submitted work. Dr Schrag reported serving as a consultant/advisor to and receiving personal fees from Pfizer, receiving research funding from the American Association of Cancer Research, serving as an editor and receiving personal fees from JAMA, and receiving nonfinancial support from Grail outside the submitted work. Dr Schrag had a patent to PRISSMM, a phenomic data standard, pending during the course of this work. No other disclosures were reported.

Figures

Figure.
Figure.. Association Between Time to Genomic Testing and Survival by Stage at Diagnosis and Primary Cancer Site
A, Conditional Kendall τ (Tc) statistics measuring the association between time from cancer diagnosis to genomic testing and overall survival after diagnosis by stage at diagnosis among patients (N = 4777) with lung, breast, colorectal, pancreatic, or urothelial cancer who participated in an institutional next-generation sequencing study. B, Conditional Tc statistics measuring the association between time from cancer diagnosis to genomic testing and overall survival after diagnosis by primary cancer site. Whiskers indicate 95% CIs.

References

    1. Hernán MA, Hernández-Díaz S, Robins JM. A structural approach to selection bias. Epidemiology. 2004;15(5):615-625. doi:10.1097/01.ede.0000135174.63482.43 - DOI - PubMed
    1. Sholl LM, Do K, Shivdasani P, et al. . Institutional implementation of clinical tumor profiling on an unselected cancer population. JCI Insight. 2016;1(19):e87062. doi:10.1172/jci.insight.87062 - DOI - PMC - PubMed
    1. Martin EC, Betensky RA. Testing quasi-independence of failure and truncation times via conditional Kendall’s tau. J Am Stat Assoc. 2005;100:484-492. doi:10.1198/016214504000001538 - DOI
    1. Chiou SH. tranSurv: estimating a survival distribution in the presence of dependent left truncation and right censoring. CRAN R Project. Accessed March 27, 2020. https://cran.r-project.org/web/packages/tranSurv/index.html
    1. Cain KC, Harlow SD, Little RJ, et al. . Bias due to left truncation and left censoring in longitudinal studies of developmental and disease processes. Am J Epidemiol. 2011;173(9):1078-1084. doi:10.1093/aje/kwq481 - DOI - PMC - PubMed

Publication types