Table 2 Difference in categorization of fibrosing interstitial lung disease based on 2018 and 2011 diagnostic criteria.

From: Diagnostic and prognostic implications of 2018 guideline for the diagnosis of idiopathic pulmonary fibrosis in clinical practice

CT pattern

2018 criteria

UIP

Probable UIP

Indeterminate for UIP

Alternative diagnosis

Total

2011

criteria

UIP

184

0

0

0

184

Possible UIP

0

175

42

2†

219

Inconsistent with UIP

0

0

0

132

132

Total

184

175

42

134

535

  1. CT computed tomography; UIP usual interstitial pneumonia.
  2. †Two patients classified as having possible UIP on 2011 criteria showed ancillary findings, including pleural effusion and thickening or dilated esophagus and classified as having a CT pattern of alternative diagnosis on 2018 criteria.
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