A set of SAS macros for calculating and displaying adjusted odds ratios (with confidence intervals) for continuous covariates in logistic B-spline regression models. - Martin Gregory; Hanno Ulmer; Karl Peter Pfeiffer; Stefan Lang 003; Alexander M. Strasak (Comput. Methods Programs Biomed., 2008)

Comparing penalized splines and fractional polynomials for flexible modelling of the effects of continuous predictor variables. - Alexander M. Strasak; Nikolaus Umlauf; Ruth M. Pfeiffer; Stefan Lang 003 (Comput. Stat. Data Anal., 2011)