Table 2.

Comparison of intensity scores for BCON and BC2001 cohorts

Intensity	BCON original		BCON revised		BC2001 test cohort		BC2001 validation cohort
	Oxford	Manchester	Oxford	Manchester	Oxford	Birmingham	Oxford
0	0	0	0	0	0	0	0
1+	4	18	11	22	19	3	8
2+	24	48	62	77	81	33	81
3+	87	50	42	17	44	102	56
Not good	17	16	17	16	10	16	18
Total	132	132	132	132	154	154	163

BCON uses original scoring cut points of Oxford versus Manchester and revised scoring cut points of Oxford versus Manchester. The BC2001 test cohort is Oxford versus Birmingham (K.W.), and the BC2001 validation cohort is Oxford.