Table 2 Classifier Performance Results for Suicide Attempt after Post-Processing (n = 500).

From: Identifying Suicide Ideation and Suicidal Attempts in a Psychiatric Clinical Research Database using Natural Language Processing

Classifier

Gold Standard

Suicide Attempt

Not Suicide Attempt

Suicide Attempt

a = 381

c = 79

Not Suicide Attempt

b = 7

d = 33

Performance Results

Precision (PPV) (a/a + c)

82.8%

 

Recall (Sensitivity) (a/a + b)

98.2%

 
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