en
Scientific article
English

Time-dependent study entries and exposures in cohort studies can easily be sources of different and avoidable types of bias

Published inJournal of clinical epidemiology, vol. 65, no. 11, p. 1171-1180
Publication date2012
Abstract

To display and discuss the reasons and consequences of length and time-dependent bias. They might occur in presence of a time-dependent study entry or a time-dependent exposure which might change from unexposed to exposed.

Keywords
  • Abortion, Spontaneous/epidemiology
  • Alzheimer Disease/mortality
  • Cohort Studies
  • Coronary Disease/epidemiology
  • Cross Infection/epidemiology
  • Data Interpretation, Statistical
  • Diabetes Mellitus/epidemiology
  • Female
  • Heart Transplantation/mortality
  • Humans
  • Length of Stay/statistics & numerical data
  • Liver Cirrhosis/mortality
  • Pregnancy
  • Proportional Hazards Models
  • Selection Bias
  • Survival Analysis
  • Time Factors
Citation (ISO format)
WOLKEWITZ, Martin et al. Time-dependent study entries and exposures in cohort studies can easily be sources of different and avoidable types of bias. In: Journal of clinical epidemiology, 2012, vol. 65, n° 11, p. 1171–1180. doi: 10.1016/j.jclinepi.2012.04.008
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0895-4356
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Creation11/14/2013 2:16:00 PM
First validation11/14/2013 2:16:00 PM
Update time03/14/2023 8:46:05 PM
Status update03/14/2023 8:46:04 PM
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