Table 3.

Results of the radiological and histopathological re-evaluation, showing the number of biopsy confirmed cases and number of patients included in the study. There was no significant difference in the diagnostic accuracy between the five university hospitals. After multidisciplinary evaluation altogether 111 patients were considered to have IPF

		Histopathological finding
Radiological finding	n (%)	N:O of biopsies	UIP	Probable UIP	Possible UIP	Not UIP	IPF in multidisciplinary evaluation (%)
UIP pattern	87 (70.7)	10	7	1	1	1	87
Possible UIP pattern	18 (14.6)	7	6	1			18
Inconsistent with UIP pattern	18 (14.6)	7	4	1	1	1	6
Total	123	24	17	3	2	2	111 (90.2)