Table 4 Kruskal–Wallis test with multiple comparisons for meningioma vs. healthy bone vs. healthy muscle and metastatic carcinoma vs. healthy bone vs. healthy muscle.

From: A blinded study using laser induced endogenous fluorescence spectroscopy to differentiate ex vivo spine tumor, healthy muscle, and healthy bone

Fluorophore

Kruskal–Wallis test

Dunn’s multiple comparison test1

Meningioma

Metastatic carcinoma

Meningioma

Metastatic carcinoma

Test statistic

p

Test statistic

p

Tumor – muscle: adjusted p value

Tumor—bone: adjusted p value

Tumor – muscle: adjusted p value

Tumor—bone: adjusted p value

Bound NADH

6.32

0.0424

43.35

 < 0.0001

ns

ns

****

****

Free NADH

14.15

0.0008

50.23

 < 0.0001

ns

**

****

****

FAD

13.87

0.0010

21.72

 < 0.0001

**

ns

****

*

  1. 1*p < 0.05, **p ≤ 0.01, ****p ≤ 0.0001.
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