Table 2 Estimated annual percentage changes (95% CI) of the age-standardized breast cancer mortality rates and estimated age-specific annual percentage change (95% CI) over time

Net drift (95% CI)

1.87 (1.63-2.11)

3.85 (1.23-6.53)

1.89 (1.51-2.27)

-0.34 (-1.11-0.43)

p-value

<0.001

0.004

<0.001

0.386

25-29

-0.40 (-1.35-0.55)

-4.45 (-20.42-14.72)

1.35 (-0.19-2.90)

-0.29 (-1.93-1.39)

30-34

0.67 (0.18-1.16)

4.29 (0.80-7.90)

2.08 (1.36-2.81)

-0.14 (-1.26-1.00)

35-39

1.79 (1.46-2.12)

6.13 (4.68-7.60)

2.80 (2.34-3.26)

0.40 (-0.59-1.40)

40-44

1.82 (1.54-2.09)

5.75 (4.97-6.54)

1.92 (1.53-2.32)

0.09 (-0.85-1.04)

45-49

2.28 (2.03-2.54)

5.22 (4.76-5.68)

1.43 (1.04-1.82)

-0.36 (-1.36-0.65)

50-54

3.02 (2.72-3.31)

4.83 (4.43-5.24)

1.29 (0.77-1.81)

-1.14 (-2.46-0.20)

55-59

3.87 (3.41-4.33)

4.44 (3.89-4.99)

2.23 (1.16-3.31)

-0.99 (-3.43-1.51)

p-value

<0.001

0.001

<0.001

0.272