Table 3 Evaluation of reasons for coding false positives concepts by type of variable on the test set
Chief complaint | Observation | Specialists' notes | Procedures | Prescriptions | Total | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N* | % | 95% CI | N* | % | 95% CI | N* | % | 95% CI | N* | % | 95% CI | N* | % | 95% CI | N* | % | 95% CI | |
Temporality of event not recognized (antecedents) | 0 | - | - | 157 | 35.8 | 31.3-40.5 | 0 | - | - | 0 | - | - | 0 | - | - | 157 | 35.4 | 31.0-40.1 |
False disambiguation of concept | 2 | 66.7 | 9.4-99.2 | 253 | 57.8 | 53.0-62.4 | 1 | 100 | - | 1 | 100 | - | 0 | - | - | 257 | 58.0 | 53.3-62.7 |
Negation not detected | 0 | 0 | - | 19 | 4.3 | 2.6-6.7 | 0 | - | - | 0 | - | - | 0 | - | - | 19 | 4.3 | 2.6-6.6 |
False disambiguation of abbreviation or acronym | 1 | 33.3 | 0.8-90.6 | 6 | 1.4 | 0.5-3.0 | 0 | - | - | 0 | - | - | 0 | - | - | 7 | 1.6 | 0.6-3.2 |
Other UrgIndex error | 0 | - | - | 3 | 0.7 | 0.1-2.0 | 0 | - | - | 0 | - | - | 0 | - | - | 3 | 0.7 | 0.1-2.0 |
Total number of false positive concepts | 3 | 100 | - | 438 | 100 | - | 1 | 100 | - | 1 | 100 | - | 0 | - | 443 | 100 | - | |