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Table 1 Clinical factors of the training and validation sets

From: MRI-based radiomics nomogram for differentiation of solitary metastasis and solitary primary tumor in the spine

Clinical factors

Training set (n = 98)

Validation set (n = 37)

SSM group

(n = 49)

SPST group

(n = 49)

p

SSM group

(n = 20)

SPST group

(n = 17)

p

Gender (male/female)

25/24

23/26

0.840

13/7

8/9

0.331

Age, mean ± SD, years

59.73 ± 8.41

49.16 ± 18.99

0.001

58.15 ± 11.39

51.35 ± 20.94

0.243

Maximum diameter (cm)

3.06 ± 1.38

4.87 ± 10.53

0.234

3.39 ± 1.26

4.71 ± 2.94

0.101

Shape (regular or irregular)

14/35

13/36

1.000

6/14

4/13

0.725

Signal (uniform or uneven)

30/19

18/31

0.026

12/8

7/10

0.330

Boundaries (clear or unclear)

10/39

26/23

0.001

8/12

13/4

0.045

  1. Continuous variables are described as mean ± standard deviation, and categorical variables are presented as numbers (%)
  2. SSM solitary spinal metastasis, SPST solitary primary spinal tumor
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BMC Medical Imaging

ISSN: 1471-2342

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