| Pulmonary rehabilitation is recommended for chronic obstructive pulmonary disease patients; most courses are around 2 months in length. |
| The effectiveness and cost effectiveness of longer term maintenance programmes is unknown. |
| A 2-h maintenance session at 3, 6 and 9 months after initial pulmonary rehabilitation programme has a 72.9 % (72.5 %) probability of yielding an incremental cost-effectiveness ratio below £20,000 (£30,000) per QALY gained. |
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