Risk of self-inflicted injury (self-harm or suicide) and injury inflicted by others (assault or homicide), comparing 327 279 immigrant women and 942 502 nonimmigrant women who gave birth in Ontario during the study period
| Variable | Self-inflicted injury | Injury inflicted by others | ||||
|---|---|---|---|---|---|---|
| No. with the outcome (rate per 1000 births) | Crude RR (95% CI) | Adjusted RR* (95% CI) | No. with the outcome (rate per 1000 births) | Crude RR (95% CI) | Adjusted RR* (95% CI) | |
| Nonimmigrant status | 1199 (1.27) | 1.00 (reference) | 1.00 (reference) | 2710 (2.88) | 1.00 (reference) | 1.00 (reference) |
| Immigrant status | 240 (0.73) | 0.58 (0.50–0.67) | 0.91 (0.78–1.04) | 360 (1.10) | 0.38 (0.34–0.43) | 0.57 (0.51–0.64) |
| Maternal age, yr | 0.86 (0.85–0.87) | 0.81 (0.80–0.81) | ||||
| No. of previous births | 1.44 (1.39–1.51) | 1.64 (1.59–1.68) | ||||
| Maternal income quintile | ||||||
| 1, 2 or 3 (lower) | 1.00 (reference) | 1.00 (reference) | ||||
| 4 or 5 (higher) | 0.86 (0.76–0.98) | 0.61 (0.56–0.68) | ||||
| Resource utilization band | ||||||
| 1, 2 or 3 (lower) | 1.00 (reference) | 1.00 (reference) | ||||
| 4 or 5 (higher) | 0.88 (0.79–0.98) | 1.04 (0.96–1.12) | ||||
| Prior maternal psychiatric diagnosis | ||||||
| No | 1.00 (reference) | 1.00 (reference) | ||||
| Yes | 7.01 (6.25–7.86) | 3.55 (3.26–3.86) | ||||
Note: CI = confidence interval, RR = relative risk.
↵* Adjusted for maternal age, parity, income quintile, resource utilization band and prior maternal psychiatric diagnosis.