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Table 2 Detailed regional z-scores of TSPO-PET and Aβ-PET at the group level in six Braak-stage regions of interest and four amyloidosis regions of interest

From: Associations between sex, body mass index and the individual microglial response in Alzheimer’s disease

PET

AD

Controls

TSPO-PET z-scores

Female (mean, 95%-CI)

Male (mean, 95%-CI)

P ♂/♀ (FDR)

Female (mean, 95%-CI)

Male (mean, 95%-CI)

P ♂/♀ (FDR)

Braak I

1.290 (0.846–1.733)#

0.252 (− 0.293–0.797)

0.051

− 0.018 (− 0.883–0.847)

0.143 (− 0.767–1.052)

 > 0.999

Braak II

0.972 (0.589–1.354)# #

0.205 (− 0.265–0.675)

0.026*

− 0.265 (− 1.011–0.480)

0.273 (− 0.511–1.057)

 > 0.999

Braak III

1.726 (1.344–2.108)##

1.175 (0.706–1.644)#

0.086

0.294 (− 0.451–1.038)

− 0.231 (− 1.014–0.552)

 > 0.999

Braak IV

0.924 (0.642–1.206)

0.431 (0.085–0.778)

0.048*

0.115 (− 0.435–0.665)

− 0.149 (− 0.727–0.429)

 > 0.999

Braak V

1.125 (0.689–1.561)#

0.693 (0.157–1.229)

0.223

− 0.320 (− 1.170–0.531)

0.132 (− 0.762–1.026)

 > 0.999

Braak VI

0.643 (0.284–1.002)

− 0.171 (− 0.612–0.271)

0.022*

− 0.015 (− 0.716–0.685)

0.140 (− 0.596–0.876)

 > 0.999

Frontal cortex

1.210 (0.903–1.517)##

0.506 (0.129–0.883)

0.030*

0.015 (− 0.584–0.613)

0.059 (− 0.570–0.689)

 > 0.999

Temporal cortex

0.814 (0.527–1.101)#

0.179 (− 0.173–0.532)

0.020*

0.081 (− 0.479–0.641)

− 0.091 (− 0.680–0.497)

 > 0.999

Parietal cortex

0.918 (0.632–1.204)##

0.433 (0.082–0.785)

0.049*

− 0.029 (− 0.587–0.530)

0.001 (− 0.586–0.587)

0.943

PCC/precuneus

1.126 (0.768–1.485)##

0.391 (− 0.049–0.831)

0.026*

0.010 (− 0.689–0.708)

0.083 (− 0.651–0.818)

 > 0.999

Aβ-PET z-scores

Female (mean, 95%-CI)

Male (mean, 95%-CI)

P ♂/♀ (FDR)

Female (mean, 95%-CI)

Male (mean, 95%-CI)

P ♂/♀ (FDR)

Braak I

2.122 (1.528–2.717)# #

1.976 (1.246–2.706)#

0.950

− 0.131 (− 1.290–1.028)

0.247 (− 0.972–1.466)

 > 0.999

Braak II

0.801 (0.366–1.235)

0.542 (0.008–1.076)

 > 0.999

− 0.133 (− 0.980–0.714)

0.127 (− 0.764–1.018)

 > 0.999

Braak III

2.884 (2.288–3.481)# # #

3.109 (2.376–3.841)# # #

0.916

− 0.110 (− 1.272–1.053)

0.155 (− 1.068–1.378)

0.946

Braak IV

5.581 (4.813–6.348)# # #

5.984 (5.005–6.891)# # #

 > 0.999

− 0.098 (− 1.594–1.399)

0.334 (− 1.239–1.907)

0.992

Braak V

2.699 (2.111–3.288)# # #

3.233 (2.510–3.956)# # #

 > 0.999

0.102 (− 1.045–1.250)

0.023 (− 1.183–1.230)

0.925

Braak VI

3.911 (3.015–4.806)# # #

4.623 (3.523–5.723)# #

 > 0.999

− 0.598 (− 2.344–1.148)

0.787 (− 1.049–2.623)

 > 0.999

Frontal cortex

6.121 (5.381–6.861)# # #

5.972 (5.062–6.881)# # #

0.892

− 0.164 (− 1.607–1.279)

0.336 (− 1.181–1.854)

 > 0.999

Temporal cortex

5.139 (4.402–5.876)# # #

5.458 (4.552–6.364)# # #

0.987

− 0.216 (− 1.654–1.221)

0.329 (− 1.182–1.841)

 > 0.999

Parietal cortex

5.669 (4.962–6.375)# # #

5.717 (4.848–6.585)# # #

0.933

− 0.039 (− 1.417–1.339)

0.178 (− 1.271–1.627)

0.923

PCC/precuneus

8.302 (7.341–9.263)# # #

8.789 (7.608–9.971)# # #

 > 0.999

− 0.239 (− 2.114–1.637)

0.723 (− 1.248–2.694)

 > 0.999

  1. CI = 95% confidence interval. P values show false discovery rate (FDR) corrected significance levels for the comparison of females and males (ANOVA). * p < 0.05 for comparison of females and males with AD. # p < 0.05, ## p < 0.01, ### p < 0.005 for comparison of patients with AD vs. controls