Browse the glossary:
Length-time bias is also referred to as length bias.
Because more aggressive diseases are asymptomatic for a shorter period, screening is more likely to detect slower progressing diseases, such as slow-growing tumours, which have a better prognosis, including longer survival. Screening may thus falsely appear to improve survival.
bias · lead-time bias · screening ·
If you feel that this definition hasn't helped you to understand the term, click on our monkey to let us know.