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. 2021 Dec 21;2021(12):CD013139. doi: 10.1002/14651858.CD013139.pub2

Davis 2013.

Study characteristics
General information Objective 
  • Prediction model compared


Journal
  • Canadian Journal of Anaesthesia


Country
  • Canada


Study design
  • Prospective cohort study

Participants Number of included patients
  • 9519


Surgical specialty
  • Noncardiac surgery


Age
  • Mean 66 years (SD = not reported)


Male sex
  • 51.5%


High‐risk surgery
  • 26.3%


Insulin‐dependent diabetes mellitus
  • 2.4%


History of ischaemic heart disease
  • 18.5%


History of congestive heart failure
  • 3%


History of cerebrovascular events
  • 7.2%


Elevated creatinine
  • 1.4%


0 RCRI factors
  • 55.4%%


1 RCRI factor
  • 33%


2 RCRI factors
  • 9.4%


3 or more RCRI factors
  • 2.1%

Predictors Predictor 1:
RCRI without insulin‐dependent diabetes and preoperative creatinine > 2.0 mg/dL
  • Objective: prediction model compared

  • Category: prediction model

  • Scale: not applicable

  • Threshold: not applicable

  • Assay/device: not applicable


 
Predictor 2:
RCRI without insulin‐dependent diabetes and eGFR < 30 instead of preoperative creatinine > 2.0 mg/dL
  • Objective: prediction model compared

  • Category: prediction model

  • Scale: not applicable 

  • Threshold: not applicable

  • Assay/device: not applicable

Outcome Outcome category
  • MACE


Full outcome definition
  • Myocardial infarction, pulmonary oedema or primary cardiac arrest


Prediction horizon
  • In‐hospital events

Analysis Number of outcomes
  • 200      


Handling missing data
  • No information on handling missing data


Discrimination reported?
  • Yes


Calibration reported?
  • Yes 


Reclassification reported?
  • Yes

PROBAST: Applicability Domain 1: Participant selection
  • Low


Justification: not applicable
Domain 2: Predictors
  • Low


Justification: not applicable
Domain 3: Outcome
  • Low


Justification: not applicable
Overall judgement:
  • Low


Patient selection was appropriate, predictor and outcome definitions were clearly defined and comparable to the definitions used in the development study.
Notes
 
Item Authors' judgement Support for judgement
Domain 1: Participant selection Yes Appropriate participant selection in which patients were selected in whom the RCRI model can be applied.
Domain 2: Predictors Yes Clear (RCRI) predictor definitions were described.
Domain 3: Outcome Yes Clearly defined outcome definitions and appropriate adjudication of outcomes.
Domain 4:  Analysis Yes Clear methodology and appropriate number of outcomes. 
Overall judgement Yes Patient selection was appropriate; predictor and outcome definitions were clearly defined and comparable to the definitions used in the development study. In addition, methodology used was appropriate including the number of outcomes.