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Table 2 Results from the analysis based on MNI structural atlas

From: Exploration of spatial distribution of brain metastasis from small cell lung cancer and identification of metastatic risk level of brain regions: a multicenter, retrospective study

Region

Volume, mm3

Expected Rate (%)

No. Observed

Observed Rate (%)

z-score

P-Value

Caudate

32,353

1.4

18

1.8

0.953

0.341

Cerebellum

294,552

12.8

214

20.9

7.745

9.80 × 10-15

Frontal lobe

708,087

30.7

277

27.0

−2.593

0.010

Insula

33,041

1.4

12

1.2

−0.713

0.476

Occipital lobe

236,954

10.3

84

8.2

−2.212

0.027

Parietal lobe

421,103

18.3

170

16.6

−1.415

0.157

Putamen

26,171

1.1

12

1.2

0.102

0.919

Temporal lobe

356,227

15.5

115

11.2

−3.768

1.65 × 10-4

Thalamus

34,802

1.5

16

1.6

0.129

0.898

Deep white matter and brainstem

161,082

7.0

108

10.5

4.440

9.04 × 10-6