Table 1.

Characteristics of the non-oligometastatic patient cohort before and after PSM

Variable	Pre-PSM Cohort			Post-PSM Cohort
	<63 Gy	≥63Gy	P value	<63 Gy	≥63Gy	P value
Total	93	90		59	59
Gender
Male	66	59	0.431	47	38	0.065
Female	27	31		12	21
Age (years)
<60 years	52	48	0.726	31	27	0.461
≥60 years	41	42		28	32
KPS Score
≤80	58	52		32	32
>80	35	38	0.526	27	27	1.000
Pathological type
Squamous carcinoma	35	24	0.048	24	20	0.651
adenocarcinoma	47	61		30	35
Other	11	5		5	4
T status
T1-2	33	36	0.529	19	22	0.562
T3-4	60	54		40	37
N status
N0-1	11	14	0.463	5	12	0.066
N2-3	82	76		54	47
Response to chemotherapy
Yes	64	68		43	43	1.000
No	29	22	0.309	16	16
No. of chemotherapy cycles
<4	63	32	<0.001	30	30	1.000
≥4	30	58		29	29
GTV volume (cm3)
<146	44	40	0.697	23	23	1.000
≥146	49	50		36	36
Metastasis status
Single organ	37	41	0.430	23	27	0.456
2 to 3 organs	56	49		36	32