Table 4 Adjusted age-specific BC RRs and IBMRRs with 95% confidence intervals in Turku (TKU) in comparison with the rest of Finland (RoF) and Helsinki (HEL)

From: Mammography screening in three Finnish residential areas: comprehensive population-based study of breast cancer incidence and incidence-based mortality 1976–2009

 

Incidence

BC-related risk of mortality by year of diagnosis

BC-related risk of mortality by year of death

TKU vs RoF

40–49

0.97 (0.79–1.17)

0.73 (0.50–1.06)

0.73 (0.42–1.27)

50–59

0.96 (0.81–1.14)

0.98 (0.71–1.35)

0.78 (0.55–1.12)

60–74

1.03 (0.90–1.17)

0.85 (0.66–1.10)

0.96 (0.74–1.25)

75–84

0.80* (0.66–0.98)

0.78 (0.54–1.12)

0.72* (0.53–0.96)

TKU vs HEL

40–49

1.12 (0.89–1.39)

0.97 (0.64–1.47)

0.94 (0.51–1.72)

50–59

1.26* (1.04–1.52)

1.08 (0.76–1.54)

0.93 (0.63–1.38)

60–74

1.06 (0.92–1.23)

0.75* (0.57–1.00)

0.94 (0.71–1.25)

75–84

0.89 (0.72–1.10)

0.76 (0.51–1.13)

0.76 (0.55–1.06)

  1. *P⩽0.05.
  2. Data are shown for four age groups in the screening period (1987–2009) after the adjustment of the underlying BC incidence in 1976–1986.
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