Table 1.
Modelled and observed mortality (rates based on three year averages) from breast cancer per 100 000 in 1993 and 1998 by age group
| Age group (years) | 1993
|
1998
|
|||||
|---|---|---|---|---|---|---|---|
| Modelled | Observed | % Difference | Modelled | Observed | % Difference | ||
| 50-54 | 70.0 | 65.7 | −6.1 | 68.1 | 56.5 | −17.0 | |
| 55-59 | 88.9 | 82.6 | −7.1 | 86.9 | 68.6 | −21.1 | |
| 60-64 | 109.1 | 99.5 | −8.8 | 105.2 | 85.4 | −18.8 | |
| 65-69 | 127.7 | 114.3 | −10.5 | 126.4 | 96.1 | −24.0 | |
| 70-74 | 145.5 | 134.8 | −7.4 | (147.5)* | (122.8)* | (−16.7)* | |
| 75-79 | 166.4 | 160.9 | −3.3 | 173.3 | 151.1 | −12.8 | |
*
Numbers shown in brackets because age group 70-74 not used for estimation of effect of screening.