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Table 2 Quality assessment of studies using QUADCPR and EAI

From: Predicting the outcome of plantar heel pain in adults: a systematic review of prognostic factors

  1. Key = UTD Unable to Detect, QUADCPR Modified Quality Assessment of Diagnostic Clinical Prediction Rule, EAI The Epidemiological Appraisal Instrument; 2 = yes; 1 = unclear; 0 = no. Inter-rater agreement between the quality assessors was 82% across all 5 papers
  2. Inter-rater agreement between the quality assessors was 92% across all 13 papers
  3. *Modified in accordance with the TRIPOD statement23 recommendation for a minimum of 10 participants in the limiting sample size (ie, those who experienced the least frequent outcome) for each potential predictor variable included in the analysis