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WeightCalibSurvival R Package


To improve efficiency for estimating pure risks from additive hazards and Cox proportional hazards models with nested case-control designs.


Methods in this package are applicable to studies with some covariates that are only available for case-control samples nested in a cohort. More efficient estimates of pure risks are obtained by calibrating the design weights to data available in the entire cohort. Variance estimates for the weight-calibrated estimates are based on explicit formulas developed in the references below.

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Yei-Eun Shin, Ruth M. Pfeiffer, Barry I. Graubard, and Mitchell H. Gail



For more information, contact Ruth Pfeiffer, Ph.D., or Mitchell Gail, M.D., Ph.D.

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