Table 4.

Linear regression analysis of pre-endoscopic Rockall score against each determined outcome

Model	R	R square	Adjusted R square	Std. error of the estimate	Change statistics
					R square change	F change	df1	df2	Sig. F change
1	0.202 (a)	0.041	0.038	10.588	0.041	150.411	1	361	0.000
2	0.243 (b)	0.059	0.054	10.575	0.018	60.987	1	360	0.009
3	0.248 (c)	0.062	0.054	10.575	0.002	0.941	1	359	0.333
4	0.260 (d)	0.068	0.057	10.572	0.006	20.359	1	358	0.125