… delivery, birth weight, PTB, and being small-for-gestational age (SGA). Environmental
tobacco smoke exposure … (eCO) levels, and exposed women were compared with unexposed …

… maternal environmental tobacco smoke (ETS) on birth weight … natal ETS exposure probably
reduces infant's birth weights, … SGA) z score, birth before 37 weeks and birth weight < 2.5 Kg …

… delivering during the study period, there were 2862 smokers, of whom 1138 reported ETS
exposure, 600 reported no ETS exposure … who had smoked in the past but stopped before …

… Obviously the difference in birth weight will be larger if birth … birth weight is reduced among
women exposed to ETS as a result of growth restriction or if it is the result of early delivery. …

… Recent reviews conclude that environmental tobacco smoke (ETS) leads to diminished birth
weight. … is probably reflective of average ETS exposure in the United States a decade later. …

… weight arises from more ETS-exposed babies being delivered earlier.10 However, consistent
results were seen between the gestation-adjusted and gestation-unadjusted analyses, …

… tobacco smoke (ETS) was associated with age at menarche in a multi-ethnic birth cohort. …
at birth and in early life, we further examined whether the association between PTS and ETS …

… of exposure to environmental tobacco smoke with birth … maternal smokers and those of
non-smoking, non-ETS exposed … greater association of smoking with delivery before 33 weeks …

… been associated with preterm delivery (1, 63). Few studies have examined the effects of
environmental tobacco smoke on preterm birth (usually defined as delivery before 37 weeks of …

… A graphic representation of median duration of exposure in this study, and how that compares
to four earlier studies, is given in figure 1. In the current study, duration was divided into …