Association between outdoor ozone and compensated acute respiratory diseases among workers in Quebec (Canada)

Type de document

Études primaires

Année de publication

2015

Langue

Anglais

Titre de la revue

Industrial Health

Première page

171

Dernière page

175

Résumé

Respiratory effects of ozone in the workplace have not been extensively studied. Our aim was to explore the relationship between daily average ozone levels and compensated acute respiratory problems among workers in Quebec between 2003 and 2010 using a time-stratified case-crossover design. Health data came from the Workers’ Compensation Board. Daily concentrations of ozone were estimated using a spatiotemporal model. Conditional logistic regressions, with and without adjustment for temperature, were used to estimate odds ratios (ORs, per 1 ppb increase of ozone), and lag effects were assessed. Relationships with respiratory compensations in all industrial sectors were essentially null. Positive non-statistically significant associations were observed for outdoor sectors, and decreased after controlling for temperature (ORs of 0.98; 1.01 and 1.05 at Lags 0, 1 and 2 respectively). Considering the predicted increase of air pollutant concentrations in the context of climate change, closer investigation should be carried out on outdoor workers.

Mots-clés

Ozone, Travail en plein air, Outdoor work, Affection respiratoire, Respiratory disease, Conditions météorologiques, Weather, Réparation des accidents du travail, Compensation of occupational accidents, Québec, Relation profession-maladie, Occupation-disease relation

Numéro de projet IRSST

2011-0047

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