Rate of mesothelioma, per 100 000 person-years (up to age 85) among former Wittenoom residents, by categories of time since first exposure and age at first residence
| Time since first exposure (years) | First exposed aged ≤5 years* | First exposed aged <15 years | First exposed aged >15 years | ||||||
| n | Rate | 95% CI | n | Rate | 95% CI | n | Rate | 95% CI | |
| 20–29 | 0 | 0 | 3 | 13 | 4 to 39 | 7 | 36 | 17 to 76 | |
| 30–39 | 10 | 75 | 40 to 139 | 15 | 66 | 40 to 109 | 19 | 117 | 75 to 184 |
| 40–49 | 9 | 78 | 41 to 150 | 20 | 104 | 67 to 162 | 25 | 247 | 167 to 366 |
| 50–59 | 8 | 146 | 73 to 292 | 16 | 181 | 112 to 296 | 7 | 237 | 113 to 498 |
| 60–69 | 1 | 157 | 22 to 1117 | 4 | 358 | 134 to 953 | 1 | 578 | 81 to 4105 |
| Unknown | 1 | ||||||||
*With <10 years of duration of residence at Wittenoom.