Comparison of morphological domains
| A | B | C | D | A versus B | A versus C | B versus C | A versus D | B versus D | C versus D | |
| Patients n | 144 | 56 | 57 | 98 | ||||||
| Morphological domain | 85.4 | 98.2 | 78.9 | 100 | 0.009 | ns | 0.001 | 0.0001 | ns | <0.0001 |
| NSIP | 31.9 | 57.1 | 42.1 | 64.3 | 0.001 | ns | ns | <0.0001 | ns | 0.007 |
| OP | 3.5 | 3.6 | 3.5 | 20.4 | ns | ns | ns | <0.0001 | 0.004 | 0.003 |
| NSIP+OP | 7.8 | 17.9 | 15.8 | 15.3 | 0.001 | ns | ns | ns | ns | ns |
| UIP | nr | 5.4 | 1.8 | 0 | ns | 0.02 | ns | |||
| Multicompartment involvement | ||||||||||
| Pleural effusion or thickening (HRCT) or pleuritis (SLB) | 12.5 | 10.7 | 1.8 | nr | ns | 0.01 | 0.05 | |||
| Pericardial effusion or thickening | 1.4 | 1.8 | 1.8 | nr | ns | ns | ns | |||
| Intrinsic airways disease | 22.2 | 12.5 | 8.8 | nr | ns | 0.02 | ns | |||
| Pulmonary vasculopathy | 18.8 | 30.4 | 17.5 | nr | ns | ns | ns |
Data are presented as mean±sd or %, unless otherwise stated. Bold represents the highest significant value. A: Oldham et al. [18]; B: Chartrand et al. [22]; C: Ahmad et al. [23]; D: Ito et al. [24]; NSIP: nonspecific interstitial pneumonia; OP: organising pneumonia; UIP: usual interstitial pneumonia; HRCT: high-resolution chest tomography; SLB: surgical lung biopsy; ns: nonsignificant; nr: not reported.