Table 1.

Baseline characteristics of total study population (N=129).

Characteristics	Sub-Groups	N	%
Gender	Female	44	34.1
	Male	85	68.9
Age	Median (Range)	60 (52-66)
	<65	83	64.3
	≥65	46	35.7
BMI	Under weigh (BMI ≤ 18.5)	12	9.3
	Normal weight (18.5<BMI ≤ 24.9)	74	57.4
	Overweight and Obese (BMI≥25)	43	33.3
ECOG PS	0	24	18.6
	1	46	35.7
	2	59	45.7
Histology	Adenocarcinoma	62	48.1
	Squamous	36	27.9
	Neuroendocrine	31	24.0
ICI type	PD-1	95	73.6
	PD-L1	34	26.4
Smoking	Yes	63	48.8
	No	66	51.2
Sarcopenia	Yes	79	61.2
	No	50	38.8
Line of PD-1/PD-L1 therapy
First		92	71.3
Second or above		37	28.7
Nutritional status
Well nourished		47	36.4
Moderate or suspected malnutrition		55	42.6
Severe malnutrition		27	21.0
PD-L1 expression	<1%	59	45.7
	≥1%	70	54.3