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Different HRCT score of patients with autoimmune APAP.
| HRCT grade | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Primal HRCT score scope | ≤8 | >8 & ≤16 | >16 & ≤24 | >24 |
| N (%) | 54 (23.4) | 66 (28.6) | 59 (25.5) | 52 (22.5) |
| Extent score | 6.4 ± 1.6 | 12.6 ± 2.3 | 20.4 ± 2.5 | 28.9 ± 2.4 |
| Overall score | 8.6 ± 3.2 | 16.3 ± 5.9 | 27.3 ± 9.8 | 38.8 ± 11.0 |
| Number of score increases (%) | 24(44.4) | 25(37.9) | 35(59.3) | 29(55.8) |
| p valve | <0.001 | <0.001 | <0.001 | <0.001 |
APAP, Autoimmune pulmonary alveolar proteinosis; HRCT, High resolution computed tomography.
