Table 3.
Deprivation adjusted incidence rate ratios for self-harm between first and final year of study’s observation period by age group and by gender
| Aged 10–12 | Aged 13–16 | Aged 17–19 | ||||
|---|---|---|---|---|---|---|
| 2003 | 2018 | 2003 | 2018 | 2003 | 2018 | |
| Female | ||||||
| Cases, n | 81 | 413 | 817 | 1934 | 475 | 952 |
| Incidence rate | 7 | 30 | 58 | 117 | 50 | 87 |
| Incidence rate ratio | 4.2 | 1.9 | 1.8 | |||
| (95% CI) | (3.3, 5.3) | (1.7, 2.2) | (1.6, 2.0) | |||
| Male | ||||||
| Cases, n | 48 | 133 | 193 | 569 | 276 | 496 |
| Incidence rate | 4 | 9 | 11 | 33 | 24 | 39 |
| Incidence rate ratio | 2.5 | 2.9 | 1.7 | |||
| (95% CI) | (1.8, 3.6) | (2.4, 3.4) | (1.4, 1.9) | |||
Incidence rates are per 10,000 person years and were directly standardised for Index of Multiple Deprivation (IMD) quintile. Incidence rates are rounded to closest interger