Use of GRADE for assessment of evidence about prognosis: Rating confidence in estimates of event rates in broad categories of patients

A Iorio, FA Spencer, M Falavigna, C Alba, E Lang, B Burnand, T McGinn, J Hayden, K Williams, B Shea, R Wolff, T Kujpers, P Perel, PO Vandvik, P Glasziou, H Schunemann, G Guyatt