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Table 4 Model fit statistics for 10% sample and all cases.

From: Weekend admission to hospital has a higher risk of death in the elective setting than in the emergency setting: a retrospective database study of national health service hospitals in England

Model Elective Admissions Emergency Admissions
10% Sample   
N 153,036 310,525
Hosmer-Lemeshow
Goodness of fit test†
χ 2 = 2.19; p-value = 0.97 χ 2 = 4.36; p-value = 0.80
Discrimination
(c-statistic)
0.792 0.786
All cases   
N 1,535,267 3,105,249
Hosmer-Lemeshow
Goodness of fit test†
χ 2 = 7.37; p-value = 0.50 χ 2 = 31.78; p-value = 0.0001
Discrimination
(c-statistic)
0.786 0.787
  1. †Eight degress of freedom