Table 3.

Comparison of characteristics between the patients with and without sarcopenia

	Male (n = 98)				Female (n = 75)
	Without sarcopenia (n = 70)	Sarcopenia (n = 28)			Without sarcopenia (n = 45)	Sarcopenia (n = 30)
Variables	n (%), Median ± SD	n (%), Median ± SD	R‐value	P‐value	n (%), Median ± SD	n (%), Median ± SD	R‐value	P‐value
Age (years)	69 ± 9.8	72 ± 8.7	0.19	0.068	69 ± 10.8	64 ± 9.7	−0.22	0.088
Smoking history	57 (81.4%)	24 (85.7%)	0.11	0.301	8 (17.8%)	10 (33.3%)	−0.01	0.949
BMI (kg/m2)	23.1 ± 3.3	21.5 ± 2.8	−0.27	0.008	20.8 ± 3.1	20.5 ± 3.3	−0.09	0.477
CCI score	2 ± 1.5	2 ± 1.9	0.14	0.178	1 ± 1	1 ± 1.1	−0.06	0.651
DM	11 (15.7%)	4 (14.3%)	0.11	0.850	1 (2.2%)	3 (10%)	0.17	0.157
Blood test
Hemoglobin (g/dL)	14.6 ± 1.7	13.3 ± 1.3	−0.33	0.001	13.1 ± 1.1	13.6 ± 1	0.23	0.047
Cholinesterase (U/L)	322 ± 72.2	306 ± 81	−0.12	0.248	326 ± 70.5	320 ± 151	0.06	0.613
Albumin (g/dL)	4 ± 0.5	4 ± 0.5	−0.04	0.708	4 ± 0.5	4 ± 0.5	0.17	0.135
Creatinine (mg/dL)	0.91 ± 1.7	0.89 ± 2.3	−0.06	0.543	0.67 ± 0.3	0.66 ± 1.3	−0.10	0.426
PNI	50 ± 5.7	49 ± 4.9	−0.09	0.366	51 ± 4.3	51 ± 5.1	0.04	0.718
Spirometry test
%VC <80%	1 (1.4%)	1 (3.6%)	0.07	0.507	0 (0%)	2 (6.7%)	0.26	0.058
FEV1.0% <70%	25 (35.7%)	12 (42.9%)	0.11	0.326	8 (%)	2 (6.7%)	−0.16	0.205
Pathology
Nonadenocarcinoma	17 (24.3%)	8 (28.6%)	0.04	0.692	4 (8.9%)	1 (3.3%)	−0.12	0.327
Lymph node metastasis	5 (7.1%)	3 (10.7%)	0.06	0.593	7 (15.6%)	4 (13.3%)	0.02	0.865

BMI, body mass index; CCI, Charlson Comorbidity Index; DM, diabetes mellitus; PNI, prognostic nutritional index; %VC, percent of vital capacity; FEV1.0%, forced expiratory volume in 1 second as a percent of forced vital capacity.