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. 2006 Apr 6;6:49. doi: 10.1186/1472-6963-6-49

Table 4.

Frequency distributions (weighted percentages) of variables related to activity restrictions, body weight, smoking, and physical activity, by country and pattern of health-care use in the past 12 months: Joint Canada/US Survey of Health, 2002–03*

United States Canada
Variable Category GP only (n = 3565) GP+DC (n = 511) DC only (n = 84) GP only (n = 2434) GP+DC (n = 397) DC only (n = 51)
Pain/activity limits No pain/discomfort 79.3 74.5 79.7 81.0 73.2 90.3
Activity restrictions Often 11.5 10.7 5.6 11.0 10.4 6.7
Sometimes 19.7 24.6 23.5 20.2 27.3 12.3
Never 67.3 63.6 70.2 67.8 61.8 79.4
Back/neck problems Activity limiting 8.9 16.9 12.8 10.0 22.2 5.5
Smoking status Current 20.8 20.4 15.7 24.0 19.9 49.6
Past 24.6 28.3 29.1 29.2 34.8 7.6
Never 54.0 50.9 55.2 46.5 44.9 42.9
Body weight Under/normal weight 42.5 40.9 37.7 48.7 46.5 55.5
Overweight 32.4 31.4 41.6 32.3 35.4 34.1
Obese 20.8 23.7 18.3 15.4 15.7 8.6
Physical activity (past 3 months) Active 20.4 22.6 18.5 25.7 27.8 21.5
Moderate 20.0 21.2 18.2 26.3 25.7 21.7
Inactive 56.5 54.3 60.7 47.0 45.6 56.8
Activity frequency (past 3 months) Regular 55.6 56.1 56.5 66.3 68.3 58.6
Occasional 16.1 19.2 13.2 15.8 18.6 17.4
Infrequent 25.2 22.8 27.7 16.8 12.2 24.0

* Weighted percentages may not sum to 100 because of missing data or exclusion of certain categories; percentages weighted to account for age, sex, region (Canada only), and race/ethnicity (U.S. only); 3565, 511, and 84 represent 138,802,519, 20,060,412, and 3,453,164 adults, respectively, in the U.S.; 2434, 397, and 51 represent 16,555,719, 2,723,870, and 381,147 adults, respectively, in Canada.

GP = general practitioner or family doctor; DC = Doctor of Chiropractic.