Table 1

 Results of transbronchial biopsy and bronchoalveolar lavage in asymptomatic subjects (group 1) and subjects with symptoms (group 2)

Group 1 (%)Group 2 (%)
ACR, acute cellular rejection.
*p<0.001.
Acute rejection (⩾A2)3 (4)3 (12)
Acute rejection ( = A1)5 (7)4 (15)
Isolation of pathogen20 (29)18 (69)
ACR/isolation of pathogen24 (35)22 (85)*
Total6926