Table II.

Correlation analysis between variables.

			Gender	Age	Ethnicity	CTCs	ALP	Follow-up	Recurrence/metastasis	Survival
Spearman's rho	Gender	Correlation coefficient	1.000	−0.429a	−0.066	0.013	−0.230	−0.033	−0.389	0.505a
		Sig. (2-tailed)		0.041	0.765	0.952	0.292	0.882	0.066	0.014
		N	23	23	23	23	23	23	23	23
	Age	Correlation coefficient		1.000	0.208	0.357	−0.093	0.214	0.492a	−0.232
		Sig. (2-tailed)			0.342	0.095	0.672	0.327	0.017	0.288
		N		23	23	23	23	23	23	23
	Ethnicity	Correlation coefficient			1.000	0.094	−0.463a	0.014	0.199	0.120
		Sig. (2-tailed)				0.669	0.026	0.949	0.363	0.587
		N			23	23	23	23	23	23
	CTCs	Correlation coefficient				1.000	−0.058	0.019	0.605b	0.121
		Sig. (2-tailed)					0.791	0.931	0.002	0.582
		N				23	23	23	23	23
	ALP	Correlation coefficient					1.000	−0.020	0.106	−0.238
		Sig. (2-tailed)						0.927	0.631	0.273
		N					23	23	23	23
	Follow-up	Correlation coefficient						1.000	0.126	0.088
		Sig. (2-tailed)							0.567	0.691
		N						23	23	23
	Recurrence/metastasis	Ccorrelation coefficient							1.000	−0.250
		Sig. (2-tailed)								0.251
		N							23	23
	Survival	Correlation coefficient								1.000
		Sig. (2-tailed)
		N								23

^aCorrelation is significant at the 0.05 level (2-tailed).

^bCorrelation is significant at the 0.01 level (2-tailed). Significant correlations are shown in bold text.