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. 2017 Sep 20;2017:7518035. doi: 10.1155/2017/7518035
Call:
coxph(formula = Surv(t, c) ~ pspline(x, df = 0, caic = T), data = subdata, na.action
= na.omit, method = "breslow")
coef se(coef) se2 Chisq DF p
pspline(x, df = 0, caic = 0.0902 0.00899 0.00898 100.8 1.00 0.000
pspline(x, df = 0, caic = 11.3 1.86 0.003
Iterations: 10 outer, 29 Newton-Raphson
  Theta= 0.996
Degrees of freedom for terms= 2.9 
Likelihood ratio test=116 on 2.86 df, p=0 n= 5000