Table 4 The comparison of specific pathologic findings between the experimental and control groups.

From: Evaluation of the effect of filtered ultrafine particulate matter on bleomycin-induced lung fibrosis in a rat model using computed tomography, histopathologic analysis, and RNA sequencing

 

Experimental group

Control group

P-value

Lymphocystic vasculitis, n (%)

none

1 (10%)

7 (70%)

0.016

 < 25%

1 (10%)

2 (20%)

 

25–50%

7 (70%)

1 (10%)

 

 > 50%

1 (10%)

0 (0%)

 

Foamy histiocyte, n (%)

none

1 (10%)

5 (50%)

0.02

 < 25%

5 (50%)

0 (0%)

 

25–50%

4 (40%)

5 (50%)

 

 > 50%

0 (0%)

0 (0%)

 

Pigmented macrophage, n (%)

none

2 (20%)

4 (40%)

0.628

 < 25%

8 (80%)

6 (60%)

 

25–50%

0 (0%)

0 (0%)

 

 > 50%

0 (0%)

0 (0%)

 

Alveolar atypia, n (%)

none

7 (70%)

10 (10%)

0.171

 < 25%

2 (20%)

0 (0%)

 

25–50%

1 (10%)

0 (0%)

 

 > 50%

0 (0%)

0 (0%)

 
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