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Table 6 Temporal dataset binary classification table (observed and predicted morbidity)

From: The Marsden Morbidity Index: the derivation and validation of a simple risk index scoring system using cardiopulmonary exercise testing variables to predict morbidity in high-risk patients having major cancer surgery

Probabilities Morbidity n (%) No morbidity n (%) Total
≥ 0.5 (morbidity) 192 (84) 43 (22) 235
< 0.5 (no morbidity) 36 (16) 153 (78) 189
Total 228 196 424