Table 5

Assessment of quality of evidence of a prognostic factor for interstitial pneumonia with autoimmune features by the Grades of Recommendation, Assessment, Development and Evaluation (GRADE) system

OutcomesPrognostic factorsAnalysis*GRADE factors
PhaseStudy limitationsInconsistencyIndirectnessPublication biasImprecisionModerate/large effect sizeDose effectOverall quality
All-cause mortalityAgeUni1++Very low
Multi1++Very low
  • *‘Uni’ indicating univariate analysis while ‘Multi’ indicating multivariate analysis.