Observed and expected number of suicides between 1971 and 1997 in male electricians and glass and wood workers, 20–74 years of age, compared with the general population
| Group | Observed | Expected | SMR (95% CI) | Person-years |
|---|---|---|---|---|
| Electricians | 95 | 164.2 | 0.58 (0.47 to 0.71) | 544547.0 |
| Glass and wood workers | 296 | 364.9 | 0.81 (0.72 to 0.91) | 1156298.0 |