Table 2. Standard mortality ratios (SMR) of citizens and non-citizens exposed to the risk factor imprisonment.
| Age | German citizenship | Foreign citizenship | ||||
|---|---|---|---|---|---|---|
| Observed suicides | Expected suicides | SMR (95% CI) | Observed suicides | Expected suicides | SMR (95% CI) | |
| 14–17 | 6 | 0.3 | 21.5 (4.3–38.7) | 1 | 0.0 | 20.7 (-19.9–61.3) |
| 18–20 | 30 | 3.9 | 7.6 (4.9–10.3) | 8 | 0.7 | 11.5 (3.5–19.5) |
| 21–24 | 39 | 6.3 | 6.1 (4.1–8.0) | 6 | 1.8 | 3.4 (0.7–6.4) |
| 25–29 | 52 | 14.5 | 3.6 (2.6–4.6) | 8 | 3.1 | 2.6 (0.8–4.4) |
| 30–39 | 114 | 25.4 | 4.5 (3.7–5.3) | 35 | 5.3 | 6.5 (4.4–8.7) |
| 40–49 | 69 | 23.2 | 3.0 (2.3–3.7) | 7 | 2.7 | 2.6 (0.7–4.6) |
| 50–59 | 46 | 11.3 | 4.1 (2.9–5.3) | 4 | 0.9 | 4.5 (0.1–8.8) |
| Total | 356 | 85.1 | 4.2 (3.7–4.5) | 69 | 14.5 | 4.8 (3.6–5.9) |
SMR = Standard Mortality Ratio; CI = confidence interval. The SMR quantifies the increase (or decrease) in mortality of a study population (detainees) compared to a reference population (general population) by taking different age distributions in both populations into account.