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Table 2 Patient smoking status and tissue aryl hydrocarbon receptor (AHR) activation

From: Dendritic cells provide a potential link between smoking and inflammation in rheumatoid arthritis

Patient

Tissue contribution

Patient smoking status*

 
  

Smoker

Non-Smoker

P-value‡

Synovia

CYP1A1+

6†

1

 
 

CYP1A1-

1

12†

 
    

0.005

Nodules

CYP1A1+

2

4

 
 

CYP1A1-

2

10

 
    

0.57

  1. *Patient smoking status when tissue sample was taken; †Patients contributing paired samples were considered once for statistical analysis; ‡P-value obtained by Fisher's exact probability two-tailed test