Table 1. For each region, attained-age- and birth-cohort-specific annual changes in the incidence of stage 2–4 breast cancer in the 8-year period 2000–2007.
Region 1 | Region 2 | ||
---|---|---|---|
Attained Age* | |||
50–54 | -1% | +1% | |
55–59 | -9% | +1% | |
60–64 | -7% | +4% | |
Age in 2000** [Born] | Followed to Ages | ||
50–54 [1946–1950] | 57–61 | -3% | +5% |
55–59 [1941–1945] | 62–66 | -7% | +5% |
60–64 [1936–1940] | 69–71 | -3% | +4% |
Reached age 50 in year** | Followed to Ages | ||
2001–2005 [1951–1955] | 52–56 | -5% | +3% |
*The first three rows show results for 3 ‘horizontal’ age-bands, each five years wide: each band contains 12 of the total of 22 birth cohorts that traverse the 3 x 5 x 8 = 120 Lexis cells.
**The remaining rows group 145 Lexis cells by birth cohorts, into 4 ‘diagonal’ bands, each one 5 birth cohorts wide (the 3 cells traversed by the birth cohorts that reached age 50 in 2006 and 2007 are omitted).
Each ‘slope’, expressed as a percentage, was derived from the coefficient of ‘year’ in the fitted Poisson/Joinpoint regression.