The development and validation of oral cancer staging using administrative health data

BMC Cancer

Table 5 Accuracy of each model according to logistic regression analysis of various combinations of predictors

	Model 1	Model 2	Model 3	Model 4
Treatment	ˇ		ˇ	ˇ
Site		ˇ	ˇ	ˇ
Treatment*site				ˇ
C-statistic
Male
Stage I versus II-IV
20-44	0.76	0.60	0.78	0.83
45-64	0.78	0.62	0.80	0.82
> = 65	0.77	0.68	0.81	0.86
Stage I-II versus III-IV
20-44	0.75	0.63	0.78	0.83
45-64	0.77	0.58	0.78	0.79
> = 65	0.81	0.68	0.86	0.90
Stage I-III versus IV
20-44	0.75	0.61	0.79	0.81
45-64	0.77	0.64	0.79	0.81
> = 65	0.76	0.73	0.86	0.89
Female
Stage I versus II-IV
20-44	0.93	0.70	1.00	1.00
45-64	0.87	0.82	0.89	0.92
> = 65	0.88	0.92	0.98	0.98
Stage I-II versus III-IV
20-44	0.93	0.70	1.00	1.00
45-64	0.90	0.85	0.93	0.95
> = 65	0.87	0.97	1.00	1.00
Stage I-III versus IV
20-44	0.98	0.77	0.98	0.98
45-64	0.91	0.87	0.96	0.96
> = 65	0.84	0.86	0.92	0.94

ISSN: 1471-2407