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Table 4 Automatic syndromic classification of coded emergency department diagnoses measured against the reference standard of AllClin*

From: Accuracy of automatic syndromic classification of coded emergency department diagnoses in identifying mental health-related presentations for public health surveillance

 

AllClin

 

Coded surveillance

MH +

MH -

Total

MH +

17

4

21

MH -

8

471

479

Total

25

475

500

Kappa score

0.73

P = < 0.001

95% CI (0.58 - 0.87)

Sensitivity

68%

 

95% CI (46% - 84%)

Specificity

99%

 

95% CI (98% - 99.7%)

PPV

81%

 

95% CI (57% - 94%)

NPV

98%

 

95% CI (97%- 99%)

  1. *AllClin: Records about which all three clinicians agreed.
  2. Coded surveillance: Automatic syndromic classification of coded emergency department diagnoses.