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. Author manuscript; available in PMC: 2017 Aug 18.
Published in final edited form as: J Am Stat Assoc. 2016 Aug 18;111(514):787–799. doi: 10.1080/01621459.2015.1044090

Table 6.

Estimated regression coefficients of the Cox model for the pancreatic cancer study.

Nodes Margins PNI > 65 years Male ρ
Coef SE Coef SE Coef SE Coef SE Coef SE Coef SE
PL 0.37 0.22 0.41 0.17 1.09 0.42 0.28 0.16 -0.29 0.15 – –
DELρ I 0.25 0.10 0.42 0.17 1.09 0.40 0.29 0.16 -0.29 0.16 0.80 0.08
DELρ I 0.37 0.23 0.34 0.06 1.10 0.40 0.27 0.16 -0.30 0.16 0.80 0.08
DELρ III 0.27 0.08 0.36 0.05 1.10 0.41 0.28 0.16 -0.30 0.15 0.80 0.08

NOTE: Coef, the estimated coefficient; SE, the bootstrap standard error given by the standard deviation of the 1000 estimates. SE for the maximum partial likelihood estimator is the asymptotic standard error estimates. DELρ, the extended double empirical likelihood estimator β̂ρ that allows for a different baseline hazard function for the aggregate data.