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Table 4. Prescription medication use in the past month by gender and age group, Canada and United States, 2002 to 2003
  Canada United States
% 95% confidence interval % 95% confidence interval
Males
18 to 44
32.4
28.7,
36.1
30.6
27.6,
33.6
45 to 64
55.0*
50.3,
59.7
63.0*
59.4,
66.5
65 and over
85.0
80.8,
89.1
81.9
78.1,
85.8
All
48.1
45.6,
50.6
49.0
46.9,
51.1
Females
18 to 44
52.1
48.7,
55.6
54.3
51.2,
57.3
45 to 64
66.4*
62.2,
70.6
73.6*
70.4,
76.7
65 and over
90.1
87.2,
93.1
88.0
85.6,
90.5
All
62.9
60.6,
65.1
65.8
63.9,
67.7
All
18 to 44
42.2
39.7,
44.7
42.6
40.4,
44.8
45 to 64
60.8*
57.5,
64.0
68.4*
66.1,
70.8
65 and over
87.9
85.5,
90.3
85.4
83.3,
87.6
All
55.5
53.8,
57.2
57.6
56.2,
59.0
Notes:
i) Household population aged 18 and over.
ii) Missing data ("I don't know", "not stated", "refusal") have been excluded from the analysis.
‡ Age-adjusted percents calculated using the projected 2000 United States standard population.
* Statistically significant difference between Canada and United States (p<0.05).
Source: Joint Canada/United States Survey of Health, 2002 to 2003