| Definite UIP (n = 35) | Other patterns (n = 39) | P |
---|---|---|---|
Pulmonary function tests | Â | Â | Â |
 %FVC, % | 71.7 ± 20.6 | 73.0 ± 19.4 | NS |
 %DLCO, % | 54.8 ± 23.4 | 53.5 ± 20.6 | NS |
Quantitative CT indices | Â | Â | Â |
 HAA% (>-200 HU), % | 1.93 ± 1.32 | 1.74 ± 0.98 | NS |
 LAA% (<-960 HU), % | 5.34 ± 5.22 | 2.63 ± 2.59 | <0.01 |
 CA%, % | 1.54 ± 2.43 | 0.40 ± 0.79 | <0.01 |
 MLD, HU | −765.8 ± 50.9 | −751.0 ± 55.2 | NS |
 SD-LD, HU | 198.2 ± 24.8 | 193.9 ± 20.6 | NS |
 Kurtosis | 2.50 ± 1.81 | 2.25 ± 1.82 | NS |
 Skewness | 1.66 ± 0.44 | 1.58 ± 0.45 | NS |
CT visual scores | Â | Â | Â |
 GGO score [0-5] | 0.21 ± 0.25 | 0.66 ± 0.61 | <0.01 |
 Fibrosis score [0-5] | 2.13 ± 0.41 | 1.23 ± 0.50 | <0.01 |
 Fibrosis score ≥2 in any field | 35 (100 %) | 13 (33 %) | <0.01 |