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Table 5 Structural modifications (basement membrane thickness, disepithelization degree, endothelium) and mucosal inflammatory cells in bronchial biopsies at baseline and after BT

From: Nerve ablation after bronchial thermoplasty and sustained improvement in severe asthma

 

Friedman tes P value

T0

T0 vs T1 P value

T1

T0 vs T2 P value

T2

T12

T0 vs T12 P value

Submucosa (cells/mm 2 )

CD45

0.99

369 (253–692)

 

394 (237–796)

 

425 (313–927)

398 (329–492)

 

CD4

0.18

259 (168–312)

0.0096

329 (165–548)

 

304 (167–600)

196 (167–304)

 

CD8

0.52

118 (32–280)

 

130 (32–281)

 

134 (13–340)

196 (116–223)

 

CD68

0.0024

16 (10–35)

0.0409

27 (13–55)

0.0409

32 (10–74)

61 (26–122)

0.018

Neutrophils

0.08

206 (119–393)

0.0499

250 (193–410)

 

224 (129–495)

220 (97–277)

 

Eosinophils

0.17

39 (11–116)

 

58 (16–334)

 

79 (2–131)

211 (10–359)

 

Mast Cells (Tryptase)

0.15

112 (32–267)

0.0186

56 (11–258)

 

77 (28–123)

58 (42–170)

 

Endothelial cells-CD31

0.48

365 (240–459)

 

368 (244–597)

 

375 (341–525)

365 (309–455)

 

Basement membrane thickness, μm

0.87

5.20 (4.1–7.4)

 

5.02 (3.7–7.1)

 

5.60 (3.8–7.5)

6.53 (5.34–8.51)

 

% Disepithelization

0.404

72 (40–90)

 

50 (10–95)

 

70 (35–100)

62 (20–90)

 
  1. Legend: Data expressed as median (range). Statistics: Friedman test for comparison among time points, Wilcoxon rank test for comparison between time points (T0 vs T1, T0 vs T2 and T0 vs T12). Only significant values (p < 0.05) are reported