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Table 4 Sensitivity and specificity of cut-off prognostic survival scale for patients dying within seven days in both training and testing samples.

From: A proposed prognostic 7-day survival formula for patients with terminal cancer

 

Training (n = 374)

Validation* (n = 349)

Sensitivity

80.9%

71.0%

Specificity

65.9%

57.7%

PPV

42.6%

26.8%

NPV

91.7%

90.1%

  1. PPV: Positive Predictive Value; NPV: Negative Predictive Value
  2. * Missing data in the validation group: 1 in data for BUN and 3 in data for Respiration rate.