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Extrapolating published survival curves to obtain evidence‐based estimates of life expectancy in cerebral palsy
Author(s) -
Day Steven M,
Reynolds Robert J,
Kush Scott J
Publication year - 2015
Publication title -
developmental medicine and child neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.658
H-Index - 143
eISSN - 1469-8749
pISSN - 0012-1622
DOI - 10.1111/dmcn.12849
Subject(s) - life expectancy , extrapolation , cerebral palsy , expectancy theory , psychology , survival analysis , life table , medicine , statistics , demography , physical medicine and rehabilitation , mathematics , population , sociology , social psychology
Studies reporting long‐term survival probabilities for cohorts of persons with cerebral palsy provide evidence‐based information on the life expectancy of those cohorts. Some studies have provided estimates of life expectancy based on extrapolation of such evidence, whereas many others have opted not to do so. Here we review the basic methods of life table analysis necessary for performing such extrapolations, and apply these methods to obtain evidence‐based estimates of life expectancy from several studies that do not report such estimates themselves.