Table 4
Prevalence of wheezing or whistling in chest in past year (all children aged 0 to 11) and asthma attack (children aged 0 to 11 with asthma), by selected characteristics, 1994/1995 and 2000/2001

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  Prevalence of past-year wheezing or whistling in chest (all children) Prevalence of past-year asthma attack (children with asthma)
1994/ 1995 2000/ 2001 1994/ 1995 2000/ 2001
% %
Total 17.5 18.7 51.1 39.3 §
Sex
Male 20.1* 20.5* 52 40.9 §
Female† 14.7 16.8§ 49.5 36.7 §
Age
0 to 5 19.4‡ 22.1‡§ 56.8‡ 48.3‡§
6 to 9 16.7‡ 16.4 48.6 33.7 §
10 to 11 13.5 14.5 45.6 36.8
Daily smoker in household
Yes 20.2* 20.9* 49.8 41.0 §
No† 15.8 17.7§ 52.4 38.7 §
Household income
Lowest/Lower-middle 20.4* 21.2* 52 41.3
Middle 16.6 17.9 52.6 32.7 §
Upper-middle 17.5 20.2*§ 50.9 43.5
Highest† 15.8 16.6 47.2 38.8
Urban/Rural
Urban 17.7 18.7 52.3* 39.6 §
Rural† 16.4 18.7§ 45.2 36.8
Region of residence
British Columbia† 15.3 14.4 52.8 43.8
Prairie provinces 16.2 16.6 52 44.8
Ontario 17.3 19.4* 49.9 35.6 §
Quebec 18.7* 20.5* 51.2 39.1 §
Atlantic provinces 21.3* 21.7* 51.7 42.4 §
† reference category
‡ significantly different from estimate for next-oldest age group (p < 0.05)
* significantly different from estimate for reference category (p < 0.05)
§ significant difference between 1994/1995 and 2000/2001 (p < 0.05)
Data source: 1994/1995 to 2000/2001 National Longitudinal Survey of Children and Youth.
Table source: Statistics Canada, 2008, "Changes in the prevalence of asthma among Canadian children", Health Reports, Vol. 19 No. 2, catalogue number 82-003-XWE.