TABLE 1—
Data Sources and Codes Identifying Sexual Assault Cases: Ontario, Canada, 2002–2016 (n = 52 780)
| Data Sources and Codes | Total No. (%) | Females, No. (%) | Males, No. (%) |
| Discharge Abstract Database (DAD; n = 2362; 4.4% of cases) | |||
| T74.2: sexual abuse | 274 (0.5) | 254 (0.6) | 20 (0.3) |
| Y05: sexual assault by bodily force | 400 (0.8) | 368 (0.8) | 32 (0.5) |
| Z04.4: examination and observation following alleged rape and seduction | 119 (0.2) | . . . | . . . |
| Z04.5: examination and observation following alleged adult sexual and physical abuse | 102 (0.2) | 90 (0.2) | 12 (0.2) |
| Z04.51: examination and observation following alleged child sexual and physical abuse | 379 (0.7) | 190 (0.4) | 189 (2.7) |
| Z61.4: problems related to alleged sexual abuse of child by person within primary support group | 700 (1.3) | 615 (1.3) | 85 (1.2) |
| Z61.5: problems related to alleged sexual abuse of child by person outside primary support group | 550 (1.0) | 465 (1.0) | 85 (1.2) |
| Suspected ICD-10 codes for childhood sexual assaulta | 83 (0.2) | 36 (0.1) | 47 (0.7) |
| National Ambulatory Care Reporting System (NACRS; n = 49 727; 94.2% of cases) | |||
| T74.2: sexual abuse | 7 178 (13.6) | 6 850 (15.0) | 328 (4.6) |
| Y05: sexual assault by bodily force | 12 276 (23.3) | 11 362 (24.9) | 914 (12.9) |
| Z04.4: examination and observation following alleged rape and seduction | 17 510 (33.2) | 16 731 (36.6) | 779 (11.0) |
| Z04.5 examination and observation following alleged adult sexual and physical abuse | 9 664 (18.3) | 9 006 (19.7) | 658 (9.3) |
| Z04.51: examination and observation following alleged child sexual and physical abuse | 8 693 (16.5) | 6 343 (13.9) | 2 350 (33.1) |
| Z61.4: problems related to alleged sexual abuse of child by person within primary support group | 1 427 (2.7) | 1 093 (2.4) | 334 (4.7) |
| Z61.5: Problems related to alleged sexual abuse of child by person outside primary support group | 785 (1.5) | 569 (1.2) | 216 (3.0) |
| Suspected ICD-10 codes for childhood sexual assaulta | 2 454 (4.6) | 1 101 (2.4) | 1 353 (19.1) |
| Ontario Health Insurance Plan (OHIP; n = 4542; 8.6% of cases) | |||
| K018: sexual assault examination—female | 4 129 (7.8) | . . . | . . . |
| K021: sexual assault examination—male | 413 (0.8) | . . . | . . . |
| Data source overlap | |||
| DAD only | 1 853 (3.5) | 1 495 (3.3) | 358 (5.0) |
| DAD and NACRS | 450 (0.9) | 348 (0.8) | 102 (1.4) |
| DAD and NACRS and OHIP | 45 (0.1) | . . . | . . . |
| DAD and OHIP | 14 (0.0) | . . . | . . . |
| NACRS only | 45 935 (87.0) | 39 718 (86.9) | 6 217 (87.6) |
| NACRS and OHIP | 3 297 (6.2) | 3 133 (6.9) | 164 (2.3) |
| OHIP only | 1 186 (2.2) | 934 (2.0) | 252 (3.6) |
Note. ICD-10 = International Classification of Diseases, Tenth Revision (Geneva, Switzerland: World Health Organization; 1992). Row percentages do not total 100% as individuals can have multiple codes and be in multiple databases. Ellipses denote cells suppressed due to small cell sizes < 5.
a
List of suspected codes presented in Appendix A (available as a supplement to the online version of this article at http://www.ajph.org).