Prevalence (%) of unruptured intradural saccular aneurysms ≥2 mm stratified by age group and sex
| Total | 40–54 years | 55–64 years | 65–74 years | 75–84 years | |
| Men | |||||
| No with aneurysms/no of participants | 48/872 | 8/157 | 13/236 | 21/325 | 6/154 |
| Proportion with aneurysms (95% CI) | 5.5 (4.1 to 7.2) | 5.1 (2.2 to 9.8) | 5.5 (3.0 to 9.2) | 6.5 (4.0 to 9.7) | 3.9 (1.4 to 8.3) |
| Women | |||||
| No with aneurysms/no of participants | 74/990 | 10/224 | 23/279 | 29/348 | 12/139 |
| Proportion with aneurysms (95% CI) | 7.5 (5.9 to 9.2) | 4.5 (2.1 to 8.1) | 8.2 (5.2 to 12.1) | 8.3 (5.7 to 11.7) | 8.6 (4.5 to 15.6) |
| Total | |||||
| No with aneurysms/no of participants | 122/1862 | 18/381 | 36/515 | 50/673 | 18/293 |
| Proportion with aneurysms (95% CI) | 6.6 (5.4 to 7.6) | 4.7 (2.8 to 7.4) | 7.0 (4.9 to 9.5) | 7.4 (5.6 to 9.7) | 6.1 (3.7 to 9.5) |
The Tromsø Study.