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Measured adult body mass index (BMI), by sex, household population aged 18 and over excluding pregnant females, Canada and provinces


                                   Measured adult body mass index
  Total Underweight, BMI under 18.50 Normal weight, BMI 18.50 to 24.99 Overweight, BMI 25.00 to 29.99 Obese, BMI 30.00 or higher
  number number % number % number % number %
2004  
Canada 23,985,069 471,315 2.0 9,328,312 38.9 8,646,771 36.1 5,538,672 23.1
Males 11,860,932 169,614 E 1.4 E 3,985,661 33.6 4,983,865 42.0 2,721,792 22.9
Females 12,124,137 301,700 2.5 5,342,651 44.1 3,662,906 30.2 2,816,880 23.2
Newfoundland and Labrador 404,851 F F 113,873 28.1 150,128 37.1 137,276 33.9
Males 200,001 F F 37,455 18.7 95,144 47.6 66,578 33.3
Females 204,850 F F 76,418 37.3 54,984 26.8 70,697 34.5
Prince Edward Island 103,639 F F 33,674 32.5 41,621 40.2 27,298 26.3
Males 50,264 F F 13,843 27.5 25,056 49.8 11,109 22.1
Females 53,375 F F 19,831 37.2 16,565 31.0 16,189 30.3
Nova Scotia 719,062 F F 270,795 37.7 251,621 35.0 177,526 24.7
Males 350,615 F F 139,572 39.8 140,510 40.1 65,760 E 18.8 E
Females 368,447 F F 131,223 35.6 111,111 30.2 111,767 30.3
New Brunswick 569,616 F F 197,649 34.7 200,855 35.3 166,228 29.2
Males 280,404 F F 81,704 29.1 110,865 39.5 86,406 30.8
Females 289,212 F F 115,945 40.1 89,990 31.1 79,821 27.6
Quebec 5,820,415 128,297 E 2.2 E 2,414,879 41.5 2,008,482 34.5 1,268,756 21.8
Males 2,868,395 F F 1,040,237 36.3 1,181,559 41.2 598,217 20.9
Females 2,952,020 79,914 E 2.7 E 1,374,643 46.6 826,924 28.0 670,540 22.7
Ontario 9,303,560 214,400 E 2.3 E 3,638,946 39.1 3,340,406 35.9 2,109,807 22.7
Males 4,595,012 F F 1,590,588 34.6 1,881,656 40.9 1,055,042 23.0
Females 4,708,547 146,674 E 3.1 E 2,048,358 43.5 1,458,750 31.0 1,054,765 22.4
Manitoba 826,582 10,992 E 1.3 E 298,990 36.2 283,595 34.3 233,005 28.2
Males 408,199 F F 116,366 28.5 162,530 39.8 124,288 30.4
Females 418,383 F F 182,624 43.6 121,064 28.9 108,717 26.0
Saskatchewan 702,592 F F 208,253 29.6 262,029 37.3 216,681 30.8
Males 346,853 F F 87,597 25.3 154,469 44.5 99,788 28.8
Females 355,739 F F 120,657 33.9 107,560 30.2 116,893 32.9
Alberta 2,345,818 F F 876,107 37.3 837,430 35.7 591,343 25.2
Males 1,181,555 F F 348,537 29.5 485,091 41.1 327,812 27.7
Females 1,164,262 F F 527,570 45.3 352,339 30.3 263,531 22.6
British Columbia 3,188,935 F F 1,275,145 40.0 1,270,603 39.8 610,751 19.2
Males 1,579,633 F F 529,762 33.5 746,986 47.3 286,791 18.2
Females 1,609,302 16,342 E 1.0 E 745,383 46.3 523,617 32.5 323,960 20.1

1. Data source: Statistics Canada, Canadian Community Health Survey, Nutrition, 2004
2. A definition change was implemented in 2004 to conform with Health Canada guidelines for body weight classification.
3. Measured body mass index (BMI) is calculated by dividing the respondent's measured body weight (in kilograms) by their measured height (in metres) squared.
4. The index is: less than 18.50 (underweight); 18.50 to 24.99 (normal weight), 25.00 to 29.99 (overweight); 30.00 to 34.99 (obese, class I); 35.00 to 39.99 (obese, class II); 40.00 or greater (obese, class III).
5. Body mass index (BMI) is a method of classifying body weight according to health risk. According to the World Health Organization (WHO) and Health Canada guidelines, health risk levels are associated with each of the following BMI categories: normal weight = least health risk; underweight and overweight = increased health risk; obese, class I = high health risk; obese, class II = very high health risk; obese, class III = extremely high health risk.
6. Bootstrapping techniques were used to produce the coefficient of variation (CV) and 95% confidence intervals (CIs).
7. Data with a coefficient of variation (CV) from 16.6% to 33.3% are identified by an (E) and should be interpreted with caution.
8. Data with a coefficient of variation (CV) greater than 33.3% were suppressed (F) due to extreme sampling variability.
9. CANSIM table 105-2001.
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