Age standardised hospitalisation rates (SHR × 10000 women aged 35 or more) and ratio of standardised rates (RSR) for hysterectomy attributable to any cause by socioeconomic status. Rome, 1997
| Socioeconomic level | Number | SHR | 95% CI | RSR | 95% CI |
|---|---|---|---|---|---|
| I | 515 | 31.1 | 28.5 to 33.9 | 1.00 | |
| II | 979 | 34.4 | 32.4 to 33.7 | 1.11 | 0.99 to 1.23 |
| III | 996 | 39.4 | 37.1 to 42.0 | 1.26 | 1.14 to 1.41 |
| IV | 651 | 41.8 | 38.7 to 45.1 | 1.34 | 1.19 to 1.51 |
| Total | 3141 | ||||
| Linear test for trend | 0.013 |