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Table 4 Classification of 15 AA-related BC cases (D) and 184 other BC cases (−D) according to the full model (left panel) or short model (right panel) of logistic regression

From: An etiologic prediction model incorporating biomarkers to predict the bladder cancer risk associated with occupational exposure to aromatic amines: a pilot study

Classified

True

Total

Classified

True

Total

D

–D

D

–D

Positive

14

34

48

Positive

14

73

87

Negative

1

150

151

Negative

1

111

112

Total

15

184

199

Total

15

184

199

Sensitivity

93.3%

Sensitivity

93.3%

Specificity

81.5%

Specificity

60.3%

Positive predictive value

29.2%

Positive predictive value

16.1%

Negative predictive value

99.3%

Negative predictive value

99.1%

Correctly classified

82.4%

Correctly classified

62.8%

Net Benefit per 100 patients

+ 5.3

Net Benefit per 100 patients

+ 5.1

  1. The risk threshold R (purposely chosen cut-off point of predicted probability) was 0.09 and 0.05 in the left and right panel, respectively. Net Benefit per 100 patients calculated from the above values