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The aim of this study was to evaluate the effect of smoking on taste and smell impairment in a large population- based study.

Cross-sectional survey in Dortmund, Germany.

The population sample was randomly drawn from the city’s central registration office. Following a standardized interview, validated taste and smell tests were performed. Descriptive statistics and logistic regression was used in the analysis.

Among the 1312 study participants, 3.6 % were functionally anosmic, and 18 % had olfactory dysfunction. Approximately 20 % recognized only three or less of the four tastes when presented at suprathreshold concentrations, indicating signs of taste impairment. Current smoking in general increased the risk for impairment of olfactory …