P valueb 0.0.376 0.015 0.787 0.0004 0.a The A1AT IHC results were evaluated by the percentage of immunopositive stained cells (score 0 ?4) and the intensity of the cell staining (score 0 ?). The score is their summation. A final score greater than 2 was defined as a positive staining. b Chi-square test was employed to analyze all differences between groups. p 0.05 was considered to have a signific