Table 2. Summary of Error Rates by Note Type and Processing Stage.
| Note Type (No.) | Note Stage | Errors, All Types | Clinically Significant Errors | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No. of Total Errors/Total No. of Words in Criterion Standard (%) | No. of Notes With Errors/Total No. of Notes (%) | Mean Errors per Note, No. | Error Rate by Note, Median (IQR) | No. of Total Errors/Total No. of Words in Criterion Standard (%) | No. of Notes With Errors/Total No. of Notes (%) | Mean Errors per Note, No. | Error Rate by Note, Median (IQR) | ||
| Discharge summaries (75) | SR | 3892/42 873 (9.1) | 75/75 (100.0) | 51.9 | 8.2 (5.2-11.7) | 248/42 873 (0.6) | 69/75 (90.7) | 3.3 | 0.2 (0-0.6) |
| MT | 195/42 873 (0.5) | 46/75 (61.3) | 2.6 | 0.3 (0.0-0.6) | 13/42 873 (0.03) | 12/75 (16.0) | 0.2 | 0 | |
| SN | 163/42 873 (0.4) | 41/75 (54.7) | 2.2 | 0.2 (0.0-0.5) | 6/42 873 (0.01) | 6/75 (8.0) | 0.1 | 0 | |
| Office notes (83) | SR | 2513/35 841 (7.0) | 76/83 (91.6) | 30.3 | 5.8 (3.4-8.9) | 136/35 841 (0.4) | 39/83 (47.0) | 1.6 | 0 (0-0.3) |
| MT | 239/35 841 (0.7) | 43/83 (51.8) | 2.9 | 0.2 (0.0-0.4) | 17/35 841 (0.05) | 12/83 (14.5) | 0.2 | 0 | |
| SN | 53/35 841 (0.1) | 22/83 (26.5) | 0.6 | 0.0 (0.0-0.2) | 9/35 841 (0.03) | 7/83 (8.4) | 0.1 | 0 | |
| Operative notes (59) | SR | 1756/31 466 (5.6) | 58/59 (98.3) | 29.8 | 4.6 (3.2-8.2) | 84/31 466 (0.3) | 31/59 (52.5) | 1.4 | 0 (0-0.2) |
| MT | 138/31 466 (0.4) | 37/59 (62.7) | 2.3 | 0.2 (0.0-0.6) | 11/31 466 (0.03) | 8/59 (13.6) | 0.2 | 0 | |
| SN | 112/31 466 (0.4) | 29/59 (49.2) | 1.9 | 0.0 (0.0-0.5) | 6/31 466 (0.02) | 4/59 (6.8) | 0.2 | 0 | |
| All notes (217) | SR | 8161/110 180 (7.4) | 209/217 (96.3) | 37.6 | 6.1 (3.9-10.1) | 468/110 180 (0.4) | 138/217 (63.6) | 2.2 | 0 (0-0.4) |
| MT | 461/110 180 (0.4) | 129/217 (58.1) | 2.1 | 0.2 (0.0-0.5) | 41/110 180 (0.04) | 32/217 (14.7) | 0.2 | 0 | |
| SN | 328/110 180 (0.3) | 92/217 (42.4) | 1.5 | 0.0 (0.0-0.4) | 21/110 180 (0.02) | 17/217 (7.8) | 0.1 | 0 | |
Abbreviations: IQR, interquartile range; MT, medical transcriptionist–edited notes; SN, signed notes; SR, automatic transcriptions by the speech recognition system.