Mean effect sizes (ESs) for the relationship between the magnitude of improvement in cognitive function and the time interval between lung transplantation (LTx) and the pulmonary rehabilitation (PR) programme
| Time to PR months | LTx recipients n | t | ES | p-value | |
| Mean±sd | 95% CI | ||||
| 1–2 | 6 | 3.66 | 0.15±0.11 | 0.05–0.25 | 0.011 |
| 2–12 | 5 | 2.67 | 0.28±0.28 | 0.02–0.54 | 0.037 |
| >12 | 13 | 3.12 | 0.34±0.28 | 0.07–0.60 | 0.020 |
Mean ES was defined as the mean value of all cognitive domain ESs. A significant mean ES indicates a directional trend of global improvement in cognitive function.