TABLE 5

Computed tomography findings among pathological usual interstitial pneumonia (UIP) categories

Pathological diagnosisp-value
Definite UIPProbable UIPPossible UIPNot UIP
Subjects1884292
Reticular abnormality188 (100)42 (100)9 (100)2 (100)NA
Extent of reticular abnormality#30.2±8.730.2±8.829.4±9.222.5±3.50.512
Honeycombing103 (54.8)23 (54.8)3 (33.3)2 (100)0.347
Extent of honeycombing#15.8±9.016.9±14.113.8±5.920.0±7.10.255
Extensive ground-glass abnormality16 (8.5)5 (11.9)0 (0)0 (0)0.660
Profuse micronodules9 (4.8)3 (7.1)1 (11.1)0 (0)0.782
Discrete cysts0 (0)0 (0)0 (0)0 (0)NA
Diffuse mosaic attenuation/air trapping40 (21.3)11 (26.2)1 (11.1)0 (0)0.643
Consolidation2 (1.1)0 (0)1 (11.1)0 (0)0.052
Emphysema33 (17.6)13 (31)2 (22.2)0 (0)0.222
Craniocaudal distribution0.993
 Lower lung predominance141 (75)32 (76.2)7 (77.8)2 (100)
 Upper or mid-lung predominance15 (8)4 (9.5)1 (11.1)0 (0)
 Diffuse distribution32 (17)6 (14.3)1 (11.1)0 (0)
Axial distribution0.549
 Peripheral predominance165 (87.8)33 (78.6)8 (88.9)2 (100)
 Central/PBV predominance7 (3.7)4 (9.5)1 (11.1)0 (0)
 Diffuse distribution16 (8.5)5 (11.9)0 (0)0 (0)
  • Data are presented as n, n (%) or mean±sd, unless otherwise stated. PBV: peribronchovascular; NA: not answered. #: percentage of lung parenchyma.