Table 1.

Association of GLUT-1 expression with clinicopathologic Variables

Variables	GLUT-1 positive	GLUT-1 negative	n	P-value
Age
<62 (median)	35%	65%	71	0.01a
≥62 (median)	56%	44%	84
Gender
Female	51%	49%	83	0.57a
Male	43%	57%	73
Tumor size
Mean ± s.d. (cm)	3.2 ± 1.8	3.2 ± 2.0	130	0.92c
Stage
I, II	40%	54%	98	0.92b
III, IV	52%	33%	23
Histology/differentiation
TC	7%	93%	46	< 0.001a
AC	21%	79%	29
LCNEC	74%	26%	23
SCLC	78%	22%	63

AC, atypical carcinoid; LCNEC, large cell neuroendocrine carcinoma; NEC, neuroendocrine carcinoma; SCLC, small cell lung carcinoma; TC, typical carcinoid.

^aχ² test.

^bFisher’s exact test.

^cStudent’s t-test.