Table 1.

Clinical characteristics of patients in 1 cycle and 2 cycles groups before and after propensity score matching.

Characteristic		Pre-propensity score matching (n/%)			Post propensity score matching (n/%)
		1 Cycle (n = 98)	2 cycles (n = 108)	P value	1 Cycle (n = 76)	2 cycles (n = 76)	P value
Gender	Male	73	82	0.872	55	57	0.854
	Female	25	26		21	19
Age	<65	67	87	0.054	54	57	0.715
	≥65	31	21		22	19
Weight Loss	Yes	72	78	0.876	20	20	1.000
	No	26	30		56	56
Smoking Status	Yes	73	74	0.359	56	55	1.000
	No	25	34		20	21
KPS	≥80	73	93	0.052	59	61	0.843
	<80	25	15		17	15
Clinical Stage	I+II	19	20	0.874	16	15	1.000
	III	79	88		60	61
Timing of RT	Early	85	102	0.089	69	70	1.000
	Late	13	6		7	6
PCI	No	37	61	0.008	42	39	0.854
	Yes	61	47		34	37