Table 1. Univariate (a) and multivariate analysis (b) of the correlation of COL1A1 expression with OS among LGG patients.

	Hazard Ratio(HR)	95%CI	pvalue
a
age	1.056	1.042–1.070	0.000
gender	0.857	0.607–1.211	0.381
grade	3.496	2.389–5.115	0.000
COL1A1	1.264	1.144–1.398	0.000
b
grade	2.633	1.758–3.944	0.000
COL1A1	1.168	1.047–1.304	0.005