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Table 4 Two by Two table of predicted versus actual outcomes of the prediction algorithm

From: Identification of patients with suboptimal results after hip arthroplasty: development of a preliminary prediction algorithm

  Actual outcome
  AT RISK NOT AT RISK
Predicted outcome Worst postoperative WOMAC quartile (>11.5/100) & “Artificial with minimal or major limitations” joint perception Postoperative WOMAC ≤ 11.5 &‘’Artificial with no limitations” or ‘’Natural joint” joint perception
AT RISK 30 50
NOT AT RISK 10 175
Total 40 225
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