Table 1.

Patient characteristics stratified based on TRT timing (n = 197)

Variables	Early TRT		Late TRT		P valuea
	No.	%	No.	%
Age (y)
≤53	81	60.00	25	40.32	.014b
>53	54	40.00	37	59.68
Gender
Male	119	88.15	53	85.48	.647
Female	16	11.85	9	14.52
Smoking
Current/ever	99	73.33	45	72.58	1.000
Never	36	26.67	17	27.42
Comorbidity score
=0	122	84.14	50	80.65	.692
≥1	23	15.86	12	19.35
Chemotherapy regimen
EP	117	86.67	58	93.55	.223
Others	18	13.33	4	6.45
RT fractionation
Once daily	35	25.93	36	58.06	2.51 × 10−5 b
Twice daily	100	74.07	26	41.94
Albumin
Relatively low	62	45.93	34	54.84	.284
Relatively high	73	54.07	28	45.16

EP, etoposide‐platinum; RT, radiotherapy; TRT, thoracic radiotherapy.

^aLog‐rank test.

^bStatistically significant.