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Table 3. Use of mammograms among women aged 50 to 69, Canada and United States, 2002 to 2003
  Canada United States
% 95% confidence interval % 95% confidence interval
Less than 1 year ago
48.1*
43.4,
52.9
64.4*
60.9,
67.9
1 year to 2 years ago
25.5*
21.2,
29.9
17.2*
14.4,
20.1
2 years to 5 years ago
11.9*
8.7,
15.0
6.7*
4.8,
8.6
More than 5 years ago
..
..,
..
3.3E
2.0,
4.6
Never
10.2
7.4,
13.0
8.4
6.2,
10.6
Notes:
i) Based on female population aged 50 to 69.
ii) Missing data ("I don't know", "not stated", "refusal") have been excluded from the analysis.
* Statistically significant difference between Canada and United States (p<0.05).
E Interpret with caution (high sampling variability).
.. Data not provided due to extreme sampling variability or small sample size.
Source: Joint Canada/United States Survey of Health, 2002 to 2003