Table 28
Distribution of the household population aged 18 to 79, by body mass index norms based on self-reported inputs, by age and sex, Canada, 2007 to 2009

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Distribution of the household population aged 18 to 79, by body mass index norms based on self-reported inputs, by age and sex, Canada, 2007 to 2009: Part 1
  Body mass index norms based on self-reported inputs
Underweight Normal Weight Overweight
Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval
From To From To From To
  percent
Both sexes  
Age 18 to 39 3.3 E 1.6 4.9 53.2 48.9 57.5 28.5 24.9 32.0
Age 40 to 59 1.0 E 0.6 1.3 37.3 33.0 41.6 38.2 33.6 42.8
Age 60 to 79 F … … 33.8 28.4 39.3 41.7 37.3 46.1
Age 18 to 79 1.8 E 1.2 2.5 42.9 39.2 46.5 35.1 32.4 37.7
Males  
Age 18 to 39 F … … 49.0 44.7 53.3 35.1 31.8 38.3
Age 40 to 59 F … … 25.0 19.6 30.3 49.9 42.8 56.9
Age 60 to 79 F … … 31.3 25.1 37.4 43.4 37.6 49.2
Age 18 to 79 0.7 E 0.3 1.1 35.9 32.0 39.7 42.7 39.3 46.0
Females  
Age 18 to 39 5.6 E 2.4 8.7 57.7 52.2 63.1 21.5 15.6 27.4
Age 40 to 59 1.4 1.0 1.7 49.7 44.8 54.6 26.3 22.2 30.5
Age 60 to 79 F … … 36.2 29.8 42.6 40.2 34.8 45.6
Age 18 to 79 2.9 E 1.8 4.1 50.0 45.6 54.3 27.4 24.6 30.2
Distribution of the household population aged 18 to 79, by body mass index norms based on self-reported inputs, by age and sex, Canada, 2007 to 2009: Part 2
  Body mass index norms based on self-reported inputs
Obese, class I Obese, class II Obese, class III
Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval
From To From To From To
  percent
Both sexes  
Age 18 to 39 9.5 7.2 11.8 4.1 E 1.8 6.4 1.4 E 0.6 2.3
Age 40 to 59 17.0 12.7 21.3 4.3 3.2 5.4 2.3 E 1.4 3.3
Age 60 to 79 17.7 14.9 20.5 4.4 E 2.9 5.8 1.6 E 1.1 2.2
Age 18 to 79 14.2 12.2 16.2 4.2 3.1 5.4 1.8 E 1.2 2.5
Males  
Age 18 to 39 9.9 E 6.2 13.6 F … … 0.8 E 0.4 1.3
Age 40 to 59 18.8 13.1 24.5 3.9 E 2.5 5.2 1.9 E 0.7 3.2
Age 60 to 79 19.4 15.9 22.9 4.4 E 3.0 5.8 F … …
Age 18 to 79 15.3 12.5 18.2 4.1 E 2.6 5.6 1.3 E 0.7 2.0
Females  
Age 18 to 39 9.1 6.8 11.3 F … … F … …
Age 40 to 59 15.1 11.1 19.1 4.8 E 3.0 6.5 F … …
Age 60 to 79 16.1 12.6 19.5 4.3 E 1.6 7.0 2.1 E 1.3 2.9
Age 18 to 79 13.0 11.2 14.8 4.4 E 2.8 6.0 2.3 E 1.0 3.7
E
use with caution (data with a coefficient of variation (CV) from 16.6% to 33.3%)
F
too unreliable to be published (data with a coefficient of variation (CV) greater than 33.3%; suppressed due to extreme sampling variability)
Note(s):
The norms used in this table can be found in Health Canada, 2003, "Description of the Canadian Guidelines for Body Weight Classification in Adults," Canadian Guidelines for Body Weight Classification in Adults, Health Canada Catalogue no. H49-179/2003E, p. 9-12. http://www.hc-sc.gc.ca/fn-an/nutrition/weights-poids/guide-ld-adult/weight_book_tc-livres_des_poids_tm-eng.php (accessed Dec 19 2006).Total household population aged 18 to 79.
Source(s):
Canadian Health Measures Survey, Cycle 1.