Performance of Gender-Age-Physiology (GAP) and ILD-GAP models in predicting lung transplant or death in interstitial pneumonia with autoimmune features

Rheumatology (Oxford)Published Retrospective cohort study

Authors' conclusion

In patients with IPAF, the GAP model performed well as a predictor of lung transplantation or death at 2 years and 3 years from ILD diagnosis in patients with GAP stage 1 and GAP stage 2 disease.

Study context

Population
Adults with interstitial pneumonia with autoimmune features (IPAF) at an academic medical centre (mean age 58 years; 62% female)
Participants
94 adults
Exposure
GAP model vs ILD-GAP model for predicting lung transplant or death
Outcome
Composite of:
  • Lung transplantation
  • Death
Methodological detailssingle academic medical centre, prognostic model validation
  • Single academic medical centre
  • Prognostic model validation

Main finding

As reported in the abstract

Discrimination for lung transplantation or death (c-index)

GAP

0.664

c-index · 95% CI 0.547–0.781

ILD-GAP

0.569

c-index · 95% CI 0.440–0.697

Observational data: associations, not effects.

Further findings

Calibration of GAP model in GAP stage 1 or 2 (subgroup) · 2 and 3 years

Calibration of the GAP model satisfactory for lung transplantation or death

Original publication

Performance of GAP and ILD-GAP models in predicting lung transplant or death in interstitial pneumonia with autoimmune features. Rheumatology (Oxford). Published 21 August 2023. doi:10.1093/rheumatology/kead428

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.