Table 1 Clinical, radiological, and histological characteristics.

From: Combination of mean CT value and maximum CT value as a novel predictor of lepidic predominant lesions in small lung adenocarcinoma presenting as solid nodules

Characteristics

n (%) or mean ± SD (range)

Age (years)

63.7 ± 10.9

(38–84)

Sex

Men

29

(76.3)

Women

9

(23.7)

Smoking status

Never

6

(15.8)

Former/current

32

(84.2)

CEA (ng/ml)

3.0 ± 8.2

(0.7–47.6)

SLX (U/ml)

32.3 ± 7.2

(20.4–57.0)

Tumor size on CT (mm)

15 ± 3

(8–20)

Maximum CT value (HU)

345 ± 89

(200–625)

Mean CT value (HU)

− 88 ± 109

(− 383 to 85)

Clinical stage (8th edition)

IA1

3

(7.9)

IA2

35

(92.1)

Predominant histological subtypes

Lepidic

9

(23.7)

Papillary

15

(39.5)

Acinar

4

(10.5)

Solid

7

(18.4)

Variants (colloid)

3

(7.9)

Pathological nodal involvement

Negative

37

(97.4)

Positive

1

(2.6)

Pathological stage (8th edition)

0

1

(2.6)

IA1

17

(44.7)

IA2

12

(31.6)

IA3

1

(2.6)

IB

6

(15.8)

IIB

1

(2.6)

  1. Categorical variables are shown as numbers (%). Continuous variables are presented as mean ± SD (range). CEA carcinoembryonic antigen, SLX sialyl Lewis X.