Table 4.

Benefits of Adjuvant Therapy by T stage^*

	OR (95% CI)	P-value
T1
Surgery alone	1 [Reference]
Adj RT**	0.99 (0.68–1.44)	0.96
Adj CRT**	2.03 (0.64–6.46)	0.23
T2
Surgery alone	1 [Reference]
Adj RT	0.62 (0.37–1.03)	0.07
Adj CRT	0.75 (0.36–1.54)	0.44
T3
Surgery alone	1 [Reference]
Adj RT	0.68 (0.43–1.09)	0.11
Adj CRT	0.56 (0.31–1.02)	0.06
T4a
Surgery alone	1 [Reference]
Adj RT	0.65 (0.45–0.93)	0.02
Adj CRT	0.73 (0.49–1.08)	0.11
T4b
Surgery alone	1 [Reference]
Adj RT	0.68 (0.33–1.37)	0.28
Adj CRT	0.47 (0.24–0.93)	0.03

^*When controlled for age, n stage, margin status, and comorbidity

^**OR, Odds Ratio; CI-Confidence Interval; Adj RT-Adjuvant Radiation Therapy; Adj CRT-Adjuvant Chemoradiation Therapy