Table 3. Correlation of pretreatment anemia with outcomes of patients with or without adjuvant radiotherapy.

N (%)	Adjuvant radiotherapy N = 499				No adjuvant radiotherapy N = 156
	Hb<12g/dL	Hb≥12g/dL			Hb<12g/dL	Hb≥12g/dL
	N = 124 (24.8%)	N = 375 (75.2%)	χ2	p	N = 42 (26.9%)	N = 114 (73.1%)	χ2	p
Relapse
No	72(58.1)	274(73.1)	9.865	0.002	32(76.2)	74(64.9)	1.793	0.181
Yes	52(41.9)	101(26.9)			10(23.8)	40(35.1)
Cancer-specific death
No	105(84.7)	357(95.2)	15.030	<0.001	38(90.5)	107(93.9)	0.536	0.464
Yes	19(15.3)	18(4.8)			4(9.5)	7(6.1)
Death
No	100(80.6)	349(93.1)	15.947	<0.001	35(83.3)	107(93.9)	4.163	0.041
Yes	24(19.4)	26(6.9)			7(16.7)	7(6.1)