The Efficacy of Radiotherapy in the Treatment of Hepatocellular Carcinoma with Distant Organ Metastasis

Table 1

Baseline characteristics of patients before matching and after matching.

Characteristics	Before matching			After matching
	Radiotherapy (N = 647)	Nonradiotherapy (N = 1695)	P value	Radiotherapy (N = 529)	Nonradiotherapy (N = 529)	P value
Age at diagnosis			0.009			0.803
30–44	10	54		10	13
45–59	208	616		178	180
≥60	429	1025		341	336
Gender			0.001			0.921
Male	560	1369		449	451
Female	87	326		80	78
Years of diagnosis			0.063			0.389
2010–2012	278	801		243	257
2013–2015	369	894		286	272
Tumor grade			0.166			0.950
Well differentiated	46	113		39	35
Moderately differentiated	69	221		60	55
Poorly differentiated	63	198		52	49
Undifferentiated	3	16		2	2
Unknown	466	1147		376	388
AJCC 7th T stage			0.015			0.799
T0	7	9		6	6
T1	165	334		115	116
T2	66	192		59	52
T3	228	621		189	207
T4	45	164		36	39
TX	136	375		124	109
AJCC 7th N stage			0.195			0.863
N0	434	1075		339	343
N1	106	327		97	93
NX	107	293		93	93
Metastatic organs			<0.001			0.992
Bone	467	463		357	354
Lung	63	1035		63	65
Brain	8	17		8	9
Multiple organs	109	180		101	101
Tumor size			0.052			0.689
No more than 5 cm	153	325		121	114
Larger than 5 cm	323	882		258	272
Unknown	171	488		150	143
Tumor number			0.186			0.777
1	575	1472		464	467
≥2	72	223		65	62
Race			<0.001			0.106
White	472	1074		376	351
Black	104	317		91	93
Other/unknown	71	304		62	85
Marital status			<0.001			0.952
Married	352	767		263	264
Single	273	825		244	245
Unknown	22	103		22	20
AFP			0.002			0.556
Positive	404	1141		338	350
Negative	75	182		57	60
Unknown	168	372		134	119
Fibrosis scores			<0.001			0.447
0–4	34	62		13	19
5-6	89	242		81	88
Unknown	524	1391		435	422
Chemotherapy			<0.001			0.324
Yes	353	746		257	241
No/unknown	294	949		272	288
Surgery			0.435			0.881
Ablation	12	21		8	8
Liver resection	9	30		7	9
No	626	1644		514	512