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Scoring Standards in SPSPII.
| Score | Smoking | Symptom | PaO2, mmHg | DLCO, %predicted | HRCT overall score |
|---|---|---|---|---|---|
| 0 | No | No | ≥80 | ≥80 | / |
| 1 | Yes | Yes | ≥ 60 & < 80 | ≥ 60 & < 80 | ≤10 |
| 2 | / | / | < 60 | < 60 | > 10 & ≤ 20 |
| 3 | / | / | / | / | >20 & ≤ 30 |
| 4 | / | / | / | / | > 30 & ≤ 40 |
| 5 | / | / | / | / | > 40 |
DLCO, Carbon monoxide diffusing capacity; PaO2, Arterial partial pressure of oxygen; PAP, Pulmonary alveolar proteinosis; SPSP, Severity and prognosis score of PAP.
