Age, blood tests and comorbidities and AIMS65 risk scores outperform Glasgow-Blatchford and pre-endoscopic Rockall score in patients with upper gastrointestinal bleeding

Table 6 Linear regression analysis of Glasgow-Blatchford 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	0.198 (a)	0.039	0.036	30.434	0.039	140.659	1	361	0.000
2	0.241 (b)	0.058	0.053	30.405	0.019	70.250	1	360	0.007
3	0.256 (c)	0.065	0.058	30.396	0.007	20.873	1	359	0.091
4	0.273 (d)	0.075	0.064	30.384	0.009	30.534	1	358	0.061