Standardised mortality ratios for suicide as a function of diagnosis and substance misuse
| Diagnosis of Substance misuse | Number of cases | Observed No of years | Cumulative expected frequency | Observed frequency | Standardised mortality ratio | 95% CI |
| Concussion: | ||||||
| No | 119686 | 975890 | 228.90 | 654 | 2.86 | 2.67–3.09 |
| Yes | 6428 | 50656 | 19.03 | 96 | 5.05 | 4.13–6.16 |
| Fracture: | ||||||
| No | 7248 | 60395 | 16.12 | 42 | 2.61 | 1.93–3.53 |
| Yes | 312 | 2366 | 0.99 | 4 | 4.05 | 1.52–10.80 |
| Lesion: | ||||||
| No | 11085 | 74948 | 22.69 | 86 | 3.79 | 3.07–4.68 |
| Yes | 681 | 4156 | 1.75 | 13 | 7.44 | 4.32–12.82 |