Table 1.

Associations between clinicopathological characteristics and hypoalbuminemia in 101 stage I NSCLC patients who underwent complete surgical resection.

	No. of cases	Hypoalbuminemia	%	r-value	p-value*)
Gender
Male	79	23	29.1	0.192	0.055
Female	22	2	9.1
Age
<65 years	33	7	21.2	0.057	0.568
≥65 years	68	18	26.5
ECOG
0 or 1	80	17	21.3	0.158	0.114
2	21	8	38.1
BMI (kg/m2)
<20	29	7	24.1	−0.009	0.929
≥20	72	18	25.0
Smoking history
Smoker	62	19	30.6	0.172	0.085
Non-smoker	39	6	15.4
Tumor size
≤2.0cm	29	3	10.3	−0.221	0.026
>2.0cm ≤3.0cm	31	8	25.8
>3.0cm	41	14	34.1
Visceral pleural invasion
Present	21	12	57.1	0.385	<0.001
Absent	80	13	16.3
Lymphatic permeation
Present	19	6	31.6	0.076	0.449
Absent	82	19	23.2
Intratumoral vascular invasion
Present	33	12	36.4	0.187	0.061
Absent	68	13	19.1
Histological type
Squamous cell carcinoma	37	10	27.0	0.041	0.686
Adenocarcinoma	55	13	23.6
Other	9	2	22.2
Tumor grade
G1	26	7	26.9	0.015	0.880
G2	47	11	23.4
G3	28	7	25.0

^*Associations between clinicopathological characteristics and hypoalbuminemia were assessed using the product moment correlation coefficient (r). P-values<0.05 were defined as indicative of statistical significance.