Demographics of patients and partners
| The Netherlands (2013 + 2014 + 2015) | Germany (2014) | |
| Patients | 134 (48) | 27 (53) |
| Partners | 144 (52) | 24 (47) |
| Diagnoses# | ||
| IPF | 88 (70) | 20 (80) |
| CTD-PF | 14 (11) | 2 (8) |
| Exposure related | 14 (11) | 3 (12) |
| Unknown | 10 (8) | 0 (0) |
Data are presented as n (%). IPF: idiopathic pulmonary fibrosis; CTD-PF: connective tissue disease-associated pulmonary fibrosis. #: based on survey question.