Results of PubMed search for “interstitial lung disease in children” between June 2016 and June 2017
| All | 148 (100) |
| Wrongly assigned to search results | 26 (17.6) |
| Case reports | 44 (29.7) |
| Reviews | 35 (23.6) |
| Diagnostic techniques | 10 (6.8) |
| Treatments | 1 (0.7) |
| Translational/basic | 2 (1.4) |
| Reports on registers | 2 (1.4) |
| A1: DPLD diffuse developmental disorders# | 0 (0.0) |
| A2: DPLD growth abnormalities deficient alveolarisation# | 0 (0.0) |
| A3: DPLD infant conditions of undefined aetiology | 1 (0.7) |
| A4: DPLD related to alveolar surfactant region | 4 (2.7) |
| B1: DPLD related to systemic disease processes (other/Langerhans histiocytosis) | 19 (3/16) (12.8) |
| B2: DPLD in the presumed immune intact/related to exposures | 2 (1.4) |
| B3: DPLD related to immune dysregulation or compromise | 2 (1.4) |
| B4: DPLD related to lung vessels structural processes | 0 (0.0) |
| B5: DPLD related to reactive lymphoid lesions | 0 (0.0) |
Data are presented as n (%). The disorders in the “A” categories A1–A4 encompass disorders occurring predominantly in infancy, whereas the disorders in the “B” categories B1–B5 may manifest at all ages. Diseases were categorised according to [1, 2]. DPLD: diffuse parenchymal lung disease (used interchangeably with interstitial lung disease). #: some publications were not retrieved with the key words indicated.