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Table 4 Diagnostic ability for each cut-off

From: Development of the “POP” scoring system for predicting obstetric and gynecological diseases in the emergency department: a retrospective cohort study

Score cut off

TP

FP

TN

FN

Sensitivity (95%CI)

Specificity (95%CI)

LR+

(95%CI)

LR- (95%CI)

PPV (95%CI)

NPV (95%CI)

3/2

15

9

666

50

0.23

(0.13–0.33)

0.99 (0.98–1.00)

17.30

(7.88–37.99)

0.78

(0.68–0.89)

0.63

(0.43–0.82)

0.93

(0.91–0.95)

2/1

39

119

556

26

0.60

(0.48–0.72)

0.82 (0.79–0.85)

3.40

(2.63–4.40)

0.49

(0.36–0.66)

0.25

(0.18–0.31)

0.96

(0.94–0.97)

1/0

63

411

264

2

0.97 (0.92–1.00)

0.39 (0.35–0.43)

1.59

(1.48–1.71)

0.08

(0.02–0.31)

0.13

(0.10–0.16)

0.99

(0.98–1.00)

  1. LR+ Positive likelihood ratio, LR- Negative likelihood ratio, TP True positive, FP False positive, TN True negative, FN False negative, PPV Positive predictive value, NPV Negative predictive value, CI Confidence interval