Table 3.

Median binding potential (BP_ND and interquartile ranges) of [¹¹C]-PK11195 PET in kickboxers and controls

Brain region	Kickboxers (n = 11)	Controls (n = 11)	p value (Mann–Whitney U)	Effect size r
Brainstem	1.60 (0.80–3.54)	0.98 (0.76–1.34)	0.22	0.39
Frontal lobes	1.08 (0.56–2.39)	0.68 (0.60–0.93)	0.40	0.26
Hippocampus	1.17 (0.47–2.79)	0.58 (0.50–1.03)	0.17	0.43
Amygdala	1.07 (0.54–2.96)	0.61 (0.45–0.93)	0.13	0.46
Temporal lobes	1.10 (0.64–2.23)	0.78 (0.42–0.99)	0.24	0.37
Parietal lobes	1.01 (0.66–3.01)	0.78 (0.65–1.13)	0.44	0.24
Occipital lobes	1.07 (0.64–2.76)	0.85 (0.68–1.10)	0.37	0.28
Insula and cingulate gyri	1.03 (0.66–3.01)	0.66 (0.48–0.83)	0.06	0.58
Thalamus	1.21 (0.77–2.50)	0.90 (0.79–1.32)	0.37	0.29
Striatum	1.06 (0.57–2.16)	0.67 (0.55–0.86)	0.22	0.37
Cerebellum	0.99 (0.59–3.10)	0.84 (0.51–1.00)	0.30	0.33
White matter	1.29 (0.74–2.60)	0.94 (0.88–1.41)	0.52	0.21
Whole brain	1.15 (0.62–2.60)	0.80 (0.53–1.03)	0.24	0.36