[Impact of prenatal environmental XXXX smoke exposure on birth parameters].

@entity1 @entity286 @entity4874
The aim of the study was to analyze the association between prenatal environmental @entity286 smoke exposure (ETS) and @entity1 anthropometric parameters at birth such birth weight, length, head and chest circumference. The study population consisted of 107 pregnant @entity1 from Lodz district as the part of Polish Mother and @entity1 Cohort study. The @entity1 prenatal ETS exposure was assessed based on questionnaire with mothers and @entity4874 level in saliva collected three times in pregnancy. The level of @entity4874 in biological samples was analyzed using liquid chromatography with tandem mass spectrometry (LC-MS/MS ESI+). About 35% of the @entity1 were prenatally exposed to ETS. The birth weight of the @entity1 prenatally exposed to ETS was 335 g lower than the birth weight of non-exposed newborns p < 0.001 after adjustment for: maternal educational level, marital status, prepregnancy weight, @entity1 gender, and gestational age. The same refers to @entity1 length and chest circumference (coef. -1.1 cm; p = 0.03 and coef. -1.3 cm; p = 0.002 respectively). Taking into account the negative effect of prenatal exposure to ETS, more efforts need to be taken to eliminate @entity1 ETS exposure.
