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Table 1 Mix fraction and median survival times estimated for short- and long- term survival populations using different parametric models

From: Is there a subgroup of long-term evolution among patients with advanced lung cancer?: Hints from the analysis of survival curves from cancer registry data

Distribution Numbers of components in the model Short term survival population Long term survival population BIC
c Median c Median
Gaussian One 1 7.21 -   36622.4
  Two 0.80 3.86 0.20 19.9 31353.9
Weibull One 1 8.27 -   30320.8
  Two 0.92 9.17 0.08 10.10 29528.7
Log normal One 1 4.52 -   29094.0
  Two 0.77 4.22 0.23 6.57 28942.5
Gamma One 1 7.25 -   29250.5
  Two 0.64 3.57 0.35 11.9 28610.3
  1. c, Mix fraction in the total population; BIC, Bayesian information criterion. The model with the smallest value of BIC has the best fit.