Table 1

Reporting, risk of bias and applicability ratings of individual studies

StudyReportingRisk of biasApplicabilityOverall
TRIPOD, %ParticipantsPredictorsOutcomeAnalysisParticipantsPredictorsOutcomeROBApplicability
Yamashita et al2834++?
Weiss et al3236++++
Muhaidat et al3536++?++??
Brauer et al2537+?+
Panzer et al3037++??
Maki et al2441++++++
Boulgarides et al5241++?++??
Viccaro et al3141++?++?
Lindemann et al5144+++
Singh et al4444+?++
Nandy et al5345++?+??
Okochi et al5045++?++?
Rodriguez-Molinero et al4146+++++
Gadkaree et al3748++++++
de Vries et al3450++++++
Hnizdo et al3352++?++
Lohman et al4252++++
Gillain et al4554++
Delbaere et al2755++++
Cawthon et al3856++++
Kim et al4356++?
Tromp et al3657++++++
Stel et al4857++++++
Lamb et al2661+++?
Yamashita et al2961++++
Stalenhoef et al4762?+++
Palumbo et al4068++?+??
Bongue et al4670+?++
Palumbo et al3973++++??
Pluijm et al4976++++++
  • Note: + and green colour indicates low risk of bias /low concern regarding applicability; − and red colour indicates high risk of bias/high concern regarding applicability; ? and blue colour indicates unclear risk of bias/unclear concern regarding applicability; Bright colours pertain to the PROBAST domains, and dark colours pertain to the overall PROBAST assessments; ROB indicates risk of bias; TRIPOD indicates the percentage proportion of reported items recommended in reporting guidelines.

  • ROB, risk of bias; TRIPOD, Transparent Reporting of a multivariable prediction model for Individual Prognosis or Diagnosis.