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

Table 5 Linear regression analysis of age, blood tests and comorbidities 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	0.294 (a)	0.087	0.084	20.435	0.087	340.206	1	361	0.000
2	0.324 (b)	0.105	0.100	20.413	0.019	70.543	1	360	0.006
3	0.329 (c)	0.108	0.101	20.413	0.003	10.241	1	359	0.266
4	0.334 (d)	0.111	0.101	20.412	0.003	10.183	1	358	0.277