Change in the geometric means of salivary cotinine concentrations (ng/mL) before (2004–05) and after (2011–12) the smoke-free legislation, Barcelona, Spain; results are stratified according to socio-demographic variables.
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GM: Geometric mean.GSD: Geometric standard deviation.*Based on the adjusted geometric mean derived from a generalized linear model that included all the variables in the table.**The figures do not sum the total because of missing values.
创建时间：
2015-12-02
