Table 1. Prevalence of the disagreement pattern.
| No. | Type of Match | Disagreement patterns | Frequency |
| 1 | Extra Match (N=3300) | Recognizing qualifier, temporal and value attributes together with an entity | 1532 (46.4%) |
| 2 | Recognizing a coordinated elliptical expression as an entity | 591 (17.9%) | |
| 3 | Recognizing parentheses together with an entity | 338 (10.2%) | |
| 4 | Missing (N=10433) | Missing predictions around multi-labeled or nested entities | 601 (5.8%) |
| 5 | Partial Match (N=1366) | Omitting the reference point of a TEMPORAL entity | 392 (28.7%) |
| 6 | Exact Match (N=5217) | Mis-categorization between CONDITION and OBSERVATION | 120 (2.3%) |