.016, log-rank test). For patients surviving>or = 3 months post-transplant, the post-operative baseline FEV1 was lower for patients who later developed bronchiolitis obliterans syndrome compared to patients who did not (P = 0.007). The development of bronchiolitis obliterans syndrome and obliterative bronchiolitis were both correlated to observation time post-transplant but not to the number of rejections or infections when corrected for observation time.