Table 1

Kappa coefficients of agreement of diagnostic categories of diffuse parenchymal lung disease

Disease category	Lobar specimens (n = 133)	Lobar specimens: high confidence (n = 74)	Lobar specimens: low confidence (n = 59)
For definitions of abbreviations see box 1.
Overall coefficient levels are compared with those where diagnostic confidence was considered high (⩾70%) or low (<70% confidence).
UIP	0.42	0.58	0.19
NSIP	0.29	0.31	0.21
DIP	0.56	0.58	0.51
RB	0.09	0.08	0.1
DAD	0.5	0.69	0.11
OP	0.57	0.74	0.36
LIP	0.09	0.1	0.07
FB	0.33	0.39	0.22
EAA	0.36	0.5	0.15
Sarcoidosis	0.76	0.86	0.55
Non-diag	0.21	0.27	0.12
Normal	0.08	0.09	0.00
Other	0.41	0.60	0.13
ESL	0.31	0.35	0.19
Unclass	0.04	0.04	0.03
Overall	0.38	0.50	0.22