Prognostic factors of oral squamous cell carcinoma: the importance of recurrence and pTNM stage

Maxillofacial Plastic and Reconstructive Surgery

Table 3 Linear regression analysis for the prognostic factors influencing the survival rate of OSCC

Factor		Recurrence	pTNM stage	LNM	DOI	Differentiation	RT	LVI
Recurrence	Pearson Correlation	1	.463^a	.373^a	.307^a	.162^b	.356^a	.117
Recurrence	Sig. (2-tailed)		.000	.000	.000	.036	.000	.132
pTNM stage	Pearson Correlation	.463^a	1	.518^a	.562^a	.123	.366^a	.145
pTNM stage	Sig. (2-tailed)	.000		.000	.000	.114	.000	.061
NM	Pearson Correlation	.373^a	.518^a	1	.205^a	.067	.361^a	.211^a
NM	Sig. (2-tailed)	.000	.000		.008	.390	.000	.006
DOI	Pearson Correlation	.307^a	.562^a	.205^a	1	.107	.243^a	.099
DOI	Sig. (2-tailed)	.000	.000	.008		.166	.001	.202
Differentiation	Pearson Correlation	.162^b	.123	.067	.107	1	.021	.159^b
Differentiation	Sig. (2-tailed)	.036	.114	.390	.166		.791	.039
RT	Pearson Correlation	.356^a	.366^a	.361^a	.243^a	.021	1	.123
RT	Sig. (2-tailed)	.000	.000	.000	.001	.791		.114
LVI	Pearson Correlation	.117	.145	.211^a	.099	.159^b	.123	1
LVI	Sig. (2-tailed)	.132	.061	.006	.202	.039	.114

NM neck metastasis, DOI depth of invasion, LVI lymphovascular invasion, RT radiotherapy
^aCorrelation is significant at the 0.01 level (2-tailed)
^bCorrelation is significant at the 0.05 level (2-tailed)