Table 1. Analysis of HOTAIR and HOXA9 expression correlations in human glioma samples from the Portuguese dataset.

		Grade II		Grade III			Grade IV
		HOTAIR		HOTAIR			HOTAIR
		+	−	+		−	+	−
HOXA9	+	1	0	4		4	8	6
	−	0	5	1		5	5	34
		r = 0.774 p = 0.07		r = 0.546 p = 0.030			r = 0.655 p < 0.0001
		r = 0.619 p = 0.005
					r = 0.640 p < 0.0001
		r = 0.642 p < 0.0001

^*Pearson’s correlation.