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. 2005 Jul-Aug;12(4):448–457. doi: 10.1197/jamia.M1794

Table 1.

Automated Adverse Event Detection System Versus Manual Review for 1,000 Charts, Aggregated by Case

Automated Detection System
Cases with Apparent Events Cases without Apparent Events Total
Manual review
    Cases with true events 15 38 53
    Cases without true events 17 930 947
    Total 32 968 1,000

value (95% CI)
Sensitivity 0.28 (0.17–0.42)
Specificity 0.982 (0.971–0.990)
Positive predictive value 0.47 (0.29–0.65)
Negative predictive value 0.96 (0.95–0.97)

CI = confidence interval.