Download e-book for iPad: Flexible Parametric Survival Analysis Using Stata: Beyond by Patrick Royston,Paul C. Lambert

By Patrick Royston,Paul C. Lambert

ISBN-10: 1597180793

ISBN-13: 9781597180795

Researchers wishing to slot regression versions to survival info have lengthy confronted the tough job of selecting among the Cox version and a parametric survival version, similar to Weibull. Cox versions are healthy utilizing Stata’s stcox command, and parametric types are healthy utilizing streg, which bargains 5 parametric kinds as well as Weibull. whereas the Cox version makes minimum assumptions concerning the type of the baseline chance functionality, prediction of risks and different comparable services for a given set of covariates is hindered by means of this loss of assumptions; the ensuing expected curves usually are not gentle and don't own information regarding what happens among the saw failure occasions. Parametric types supply great, delicate predictions by way of assuming a useful kind of the danger, yet frequently the assumed shape is just too dependent to be used with genuine info, particularly if there exist major adjustments within the form of the danger over time.

Flexible Parametric Survival research utilizing Stata: past the Cox Model is anxious with acquiring a compromise among Cox and parametric types that keeps the specified positive aspects of either forms of versions. The publication is geared toward researchers who're acquainted with the fundamental innovations of survival research and with the stcox and streg instructions in Stata. As such, it really is a great supplement to An creation to Survival research utilizing Stata via Cleves, Gould, and Marchenko.

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Flexible Parametric Survival Analysis Using Stata: Beyond the Cox Model by Patrick Royston,Paul C. Lambert


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