Table 1.
Performed tests in hospital before diagnosis.
| IPF ( n = 214) | Sarcoidosis ( n = 28) | Other type ( n = 31) | ||||
|---|---|---|---|---|---|---|
| Tests | n = | % of patients in subgroup | n = | % of patients in subgroup | n = | % of patients in subgroup |
| Spirometry | 194 | 90.7% | 24 | 85.7% | 28 | 90.3% |
| Blood tests | 168 | 78.5% | 26 | 92.9% | 28 | 90.3% |
| Chest X-ray | 161 | 75.2% | 22 | 78.6% | 26 | 83.9% |
| CT scan | 156 | 72.9% | 19 | 67.9% | 26 | 83.9% |
| 6-min walk test | 120 | 56.1% | 10 | 35.7% | 19 | 61.3% |
| Lung biopsy | 93 | 43.5% | 19 | 67.9% | 13 | 41.9% |
| Bronchoaveolar lavage | 49 | 22.9% | 11 | 39.3% | 14 | 45.2% |
| Other/Don't know | 5 | 2.3% | 1 | 3.6% | - | - |
| Tests per patient (mean) | 4.4 | 4.7 | 5.0 | |||
Number of patients (n =) reporting a specific diagnostic test. Percentages do not add up to 100% as more than one response was allowed. CT, Computed tomography; IPF, idiopathic pulmonary fibrosis.