Table 1. Spearman’s rho correlations of the mRNA expression levels of the nine genes examined in 19 HNSCC cell lines.

		CTR1	OCT3	ATP7A	ATP7B	ATM	ATR	BRCA1	BRCA2	ERCC1
CTR1	N		19	19	19	13	19	19	19	19
	Correlation		−0.026	0.426	0.28	0.487	0.366	0.586	0.534	0.426
	p		0.915	0.069	0.246	0.091	0.123	0.008	0.019	0.069
OCT3	N			19	19	13	19	19	19	19
	Correlation			0.214	0.126	−0.187	0.356	−0.034	−0.011	0.282
	p			0.379	0.606	0.541	0.135	0.889	0.966	0.243
ATP7A	N				19	13	19	19	19	19
	Correlation				0.202	0.011	0.521	0.497	0.398	0.582
	p				0.408	0.972	0.022	0.03	0.091	0.009
ATP7B	N					13	19	19	19	19
	Correlation					−0.56	0.253	0.253	0.298	0.075
	p					0.046	0.297	0.296	0.215	0.759
ATM	N						13	13	13	13
	Correlation						0.28	0.033	0.016	0.385
	p						0.354	0.915	0.957	0.194
ATR	N							19	19	19
	Correlation							0.458	0.367	0.396
	p							0.048	0.123	0.093
BRCA1	N								19	19
	Correlation								0.953	0.494
	p								0.000	0.032
BRCA2	N									19
	Correlation									0.517
	p									0.023
ERCC1	N
	Correlation
	p

Bold Correlation is significant at the 0.01 level (2-tailed). Italics Correlation is significant at the 0.05 level (2-tailed).