All the logistic regressions describing the preva- lence of respiratory conditions among children include mothers' respiratory diseases as an important and highly significant factor in the models.
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The sentences
The highest relative risk values calculated from logistic models were found to be associated with mothers' respiratory diseases (1.51-6.23). As regards PFTs, we could not find a significant trend of re- duced FVC, FEV1.0' PEF, or FEV,.J/FVC among children ex- posed to passive smoking compared with nonexposed children.