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Table 5 Comparison of test characteristics of cutoff values of AS, mAS, PAS, mPAS and LS

From: Test characteristics of common appendicitis scores with and without laboratory investigations: a prospective observational study

Score

Cut-off

# below cut-off with appendicitis

# above cut-off without appendicitis

Sensitivity

Specificity

PPV

NPV

Accuracy

Alvarado Score

5

8/63 (12.7 %)

71/117 (60.7 %)

85.2

43.7

39.3

87.3

56.1

Modified Alvarado Score

4

9/55 (16.4 %)

80125 (64.0 %)

83.3

36.5

36.0

83.6

50.6

Pediatric Appendicitis Score

6

10/81 (12.4 %)

55/99 (55.6 %)

81.5

56.4

44.4

87.7

63.3

Modified Pediatric Appendicitis Score

4

7/45 (15.6 %)

8/135 (65.2 %)

87.0

30.2

34.8

84.4

48.9

Lintula Score

16

22/124 (17.7 %)

24/56 (42.9 %)

59.3

80.1

57.1

82.3

73.2

  1. PPV positive predictive value
  2. NPV negative predictive value