Table 1: The frequency of each histopathological change in EMBs of 212 adult patients after heart transplantation.

Category Endothelial swelling Activated intracapillary mononuclears Interstitial edema Total
Group C4d + (number of EMBs) 38.8% 22.3% 34.7% 16 (7.5%) patients 121 (9%) EMBs
Group C4d - (number of EMBs) 15.9% 6.7% 35.2% 196 (92.4%) patients 1229 (91%) EMBs
p-value < 0.001 < 0.001 NS

NS: Not Significant.