Table 1.

Descriptive statistics for pair-wise comparison of neighboring genes according to orientation of transcription

			Pearson's correlation coefficient (R)		Intergenic distance (bp)
	Orientation	N	Mean R ± se	Median R	Mean bp ± se	Median bp
Analyzed with full dataset	← →	1681	0.0637 ± 0.0084	0.0238	215221.3 ± 7887.2	88957
	→ →/← ←	3418	0.0877 ± 0.0061	0.0547	201669.6 ± 5611.0	75199
	→ ←	1678	0.0592 ± 0.0082	0.0238	207196.8 ± 8385.1	75805
Analyzed w/o tandem duplicates	← →	1635	0.0618 ± 0.0086	0.0220	219869.4 ± 8382.6	91546
	→ →/← ←	3295	0.0762 ± 0.0061	0.0438	209041.5 ± 5714.5	82818
	→ ←	1632	0.0594 ± 0.0083	0.0250	216217.3 ± 8729.1	80961