Table 3.

Predictive values of the PTS score for metastasis in colon cancer.

PTS score		mean (SD)	P-value	Univariate logistic regression
				OR	95% CIs		P-value
LNM			<0.001				<0.001
	Negative	0.228 (0.160)		Ref.
	Positive	0.380 (0.285)		29.654	5.677	196.987
LI			0.004				0.002
	no	0.245 (0.163)		Ref.
	yes	0.380 (0.308)		14.199	2.992	82.384
PI			0.469				0.463
	no	0.258 (0.185)		Ref.
	yes	0.228 (0.186)		0.369	0.019	4.283
VI			0.274				0.159
	no	0.272 (0.186)		Ref.
	yes	0.334 (0.328)		2.927	0.635	13.459
AnyI			0.040				0.035
	no	0.255 (0.168)		Ref.
	yes	0.337 (0.287)		5.050	1.200	24.847

PTS, peri-tumoral stroma; SD, standard deviation; OR, odds ratio; CIs, confidence intervals; LNM, lymph node metastasis; Ref., reference; LI, lymphatic invasion; PI, perineural invasion; VI, venous invasion; AnyI, any feature of extramural tumor deposits.