Applications of gray relational analysis in gastroenterology

Table 4 Results of correlation analysis.

	x7	x8	x9	x10	x11
x1	-0.81774	-0.59309	-0.27907	0.10911	-0.77759
	0.1823	0.4069	0.7209	0.8909	0.2224
x2	-0.78666	-0.98054	0.15755	-0.56181	-0.98954
	0.2133	0.0195	0.8425	0.4382	0.0105
x3	-0.31909	-0.37737	0.15463	0.06341	-0.45498
	0.6809	0.6226	0.8454	0.9366	0.5450
x4	0.66573	0.12652	0.63044	-0.59213	0.40379
	0.3343	0.8735	0.3696	0.4079	0.5962
x5	-0.56410	-0.60064	-0.11905	-0.52589	-0.57561
	0.4359	0.3994	0.8810	0.4741	0.4244
x6	0.97814	0.72219	0.38317	0.03476	0.90090
	0.0219	0.2778	0.6168	0.9652	0.0991

Note: The upper numbers are the correlation coefficients between corresponding variables and the lower numbers are the P values.