Recent trends in upper respiratory infections, ear infections and asthma among young Canadian children

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by Eleanor M. Thomas

Abstract
Keywords
Findings
Authors

Abstract

Upper respiratory (nose and throat) infections, ear infections and asthma are common among young children. This article uses data from the National Longitudinal Survey of Children and Youth (NLSCY) to trace trends in the prevalence of these conditions among young children in Canada from 1994/1995 to 2008/2009. Gender, age and regional differences in the occurrence of these conditions are examined, and possible links with exposure to cigarette smoke are considered. The prevalence of upper respiratory infections among children aged 2 to 3 remained constant or declined in most regions of Canada between 1994/1995 and 2008/2009, but rose significantly in Quebec. Ear infections declined significantly in all regions. The prevalence of asthma among children aged 2 to 7 rose steadily until 2000/2001 and then declined. A wide range of environmental factors, including reduced exposure to cigarette smoke, may have contributed to these trends.

Keywords

common cold, ear diseases, otitis media, passive smoking, respiratory diseases, respiratory sounds

Findings

Upper respiratory (nose and throat) infections, otitis media (ear infection and infl ammation) and asthma affect large numbers of young children. This article uses data from the National Longitudinal Survey of Children and Youth (NLSCY) to report trends from 1994/1995 to 2008/2009 in the prevalence of these conditions among children in Canada. Data on upper respiratory infections and ear infections are available for 2- to 3-year-olds, and data on asthma are available for children aged 2 to 7. Gender, age and regional differences in the occurrence of these conditions are examined. Possible links with exposure to cigarette smoke are considered..[Full text]

Authors

Eleanor M. Thomas (1-613-951-3002; Eleanor.Thomas@statcan.gc.ca) is with the Special Surveys Division at Statistics Canada, Ottawa, Ontario, K1A 0T6.

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