Elective neck dissection versus elective neck irradiation in cT3/4N0 maxillary sinus squamous cell carcinoma: a propensity score matching analysis

Table 2 Univariate analysis of predictors for regional control (RC) and disease specific survival (DSS)

Variable	RC	DSS
Age (≥ 50 vs. < 50)	0.428	0.276
Sex (Male vs. Female)	0.153	0.398
PNI* (Yes vs. No)	0.187	0.006
LVI^ (Yes vs. No)	0.215	0.003
Differentiation (Poor vs. intermediate vs. well)	0.011	0.002
Margin (Positive vs. negative)	< 0.001	< 0.001
Neck management (END vs. ENI)^#	0.135	0.432
Adjuvant chemotherapy (Yes vs. No)	0.638	0.354

*PNI: perineural invasion; ^LVI: lymphovascular invasion; # END: elective neck dissection; ENI: elective neck irradiation

ISSN: 1477-7819