Sex and age groups | Incident cases | Person years in 1000 | Crude incidence rate per 1000 person years (95% CI) | Expected number of cases* | SIR (95% CI)* |
Men | |||||
25–39 | 8 | 3.1 | 2.6 (1.3 to 5.1) | 1.07 | 7.5 (3.7 to 14.9) |
40–49 | 18 | 2.1 | 8.4 (5.3 to 13.4) | 4.25 | 4.2 (2.7 to 6.7) |
50–59 | 15 | 1.5 | 9.7 (5.8 to 16.1) | 7.94 | 1.9 (1.1 to 3.1) |
60–69 | 18 | 0.9 | 19.9 (12.5 to 31.5) | 8.30 | 2.2 (1.4 to 3.4) |
70–79 | 5 | 0.3 | 15.1 (6.3 to 36.3) | 5.71 | 0.9 (0.4 to 2.1) |
80+ | 1 | 0.0 | 65.0 (9.2 to 460) | 0.43 | 2.33 (0.3 to 16.5) |
Total | 65 | 8.1 | 8.1 (6.3 to 10.3) | 27.7 | 2.3 (1.8 to 3.0) |
Women | |||||
25–39 | 4 | 3.5 | 1.1 (0.4 to 3.0) | 0.3 | 13.6 (5.1 to 36.2) |
40–49 | 3 | 2.4 | 1.3 (0.4 to 3.9) | 1.1 | 2.7 (0.96 to 8.3) |
50–59 | 10 | 2.0 | 5.1 (2.7 to 9.4) | 2.6 | 3.8 (2.0 to 7.1) |
60–69 | 7 | 1.2 | 6.0 (2.9 to 12.6) | 3.8 | 1.9 (0.9 to 3.9) |
70–79 | 8 | 0.5 | 16.2 (8.1 to 32.4) | 4.3 | 1.8 (0.9 to 3.7) |
80+ | 2 | 0.1 | 16.2 (4.1 to 64.8) | 2.8 | 0.7 (0.2 to 2.8) |
Total | 34 | 9.7 | 3.5 (2.5 to 4.9) | 15.0 | 2.3 (1.6 to 3.2) |
Statistically significant results in bold.
*Age-standardised by indirect standardisation with reference rates for the total Norwegian population during 2001–2009 stratified by sex, calendar year and 1 year age groups.
SIR, standardised incidence ratio.