Year | HRCT pattern | Histological pattern | |||||
Definite UIP | Possible UIP | Inconsistent with UIP | UIP | Probable UIP | Possible UIP | Unclassifiable fibrosis | |
Unknown | 38.0 | 56.0 | 6.0 | 72.7 | 27.3 | 0.0 | 0.0 |
2013 | 51.1 | 41.7 | 7.2 | 68.2 | 27.3 | 4.5 | 0.0 |
2014 | 46.7 | 46.3 | 7.0 | 65.5 | 24.1 | 6.9 | 3.4 |
2015 | 40.1 | 55.6 | 4.3 | 70.3 | 8.1 | 10.8 | 10.8 |
2016 | 44.3 | 51.5 | 4.2 | 81.0 | 19.0 | 0.0 | 0.0 |
2017 | 45.5 | 52.4 | 2.0 | 75.0 | 8.3 | 16.7 | 0.0 |
2018 | 46.0 | 51.9 | 2.2 | 55.6 | 22.2 | 11.1 | 11.1 |
2019 (to 31 October 2019) | 46.8# | 43.0# | 10.1# | 100.0¶ | 0.0¶ | 0.0¶ | 0.0¶ |
Data are presented as % patients. HRCT: high-resolution computed tomography; UIP: usual interstitial pneumonia. #: p>0.05 comparing the results by year for HRCT pattern was calculated using the two-way ANOVA with Bonferroni correction; cases where the year of presentation was unknown were excluded. ¶: p>0.05 comparing the results by year for histological pattern was calculated using the two-way ANOVA with Bonferroni correction; cases where the year of presentation was unknown were excluded.