Table 1 Completeness and accuracy of cause of injury E codes, Emergency Department Injury Surveillance System (EDISS), Massachusetts, March 1999–February 2000.
| Probable work‐related | Probable non‐work‐related | All EDISS cases (weighted estimate) | ||||||
|---|---|---|---|---|---|---|---|---|
| Number | Number (%) with E code | Number (%) of accurate E codes | Number | Number (%) with E code | Number (%) of accurate E codes | Estimated (%) with E codes | Estimated (%) of accurate E codes | |
| All injury cases | 993 | 981 (98.8) | 634 (64.6) | 242 | 236 (97.5) | 135 (57.2) | (97.6) | (57.6) |
| Cause of injury documented in the medical record | 944 | 932 (98.7) | 623 (66.8) | 232 | 226 (97.4) | 133 (58.8) | (97.5) | (59.2) |
| Cause of injury not documented in the medical record | 49 | 49 (100.0) | 11 (22.4) | 10 | 10 (100.0) | 2 (20.0) | (100.0) | (20.1) |
| Cases determined not to be an injury | 7 | 7(100) | 0 (0.0) | 8 | 8 (100) | 0 (0.0) | (100.0) | (0.0) |
| All cases | 1000 | 988 (98.8) | 634 (64.2) | 250 | 244 (97.6) | 135 (55.3) | (97.7) | (55.7) |