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. 2012 Jan 30;344:e299. doi: 10.1136/bmj.e299

Table 4.

 Estimated proportion of cases attributable to hormone treatment for selected age groups, based on age-cohort model with screening variables and one year lag time after hormone treatment

Age group 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008
47 years 0.03 0.04 0.07 0.10 0.12 0.13 0.13 0.12 0.08 0.06 0.05
52 years 0.09 0.12 0.17 0.25 0.28 0.31 0.31 0.29 0.21 0.16 0.13
57 years 0.11 0.13 0.19 0.27 0.31 0.34 0.34 0.32 0.24 0.18 0.16
62 years 0.09 0.11 0.16 0.24 0.27 0.30 0.30 0.28 0.20 0.16 0.14