Table 2.

(A) Three and (B) Five Year Survival Estimates.

(A) 3-year survival estimates
pN0/PNI+ vs. pN0/PNI− (95% CI)
	n	Overall Survival	Disease Specific Survival	Disease Free Interval	Local Regional Control
pN0/PNI+	20	70% (45–85)	78% (52–91)	64% (38–81)	65% (40–82)
pN0/PNI−	68	83% (72–90)	90% (80–95)	79% (66–87)	84% (73–91)
pN0/PNI+ with Radiation vs. pN0/PNI+ without Radiation (95% CI)
	n	Overall Survival	Disease Specific Survival	Disease Free Interval	Local Regional Control
PNI+ No Radiation	6	83% (27–97)	83% (27–97)	33% (5–68)	50% (11–80)
PNI+ Plus Radiation	14	64% (34–83)	76% (43–92)	77% (45–92)	71% (41–88)

(B) 5-year survival estimates
pN0/PNI+ vs. pN0/PNI− (95% CI)
	n	Overall Survival	Disease Specific Survival	Disease Free Interval	Local Regional Control
pN0/PNI+	20	48% (22–70)	62% (33–82)	50% (25–71)	52% (27–72)
PN0/PNI−	68	74% (61–83)	86% (75–92)	77% (64–86)	82% (71–89)
pN0/PNI+ with Radiation vs. pN0/PNI+ without Radiation (95% CI)
	n	Overall Survival	Disease Specific Survival	Disease Free Interval	Local Regional Control
PNI+ No Radiation	6	42% (1–84)	42% (1–84)	33% (5–68)	50% (11–80)
PNI+ Plus Radiation	14	46% (18–70)	65% (31–86)	68% (34–87)	63% (33–83)

pN0 = pathologically N-0; PNI = Perineural invasion