الفهرس 
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Abstract
Smoking is a major public health issue due to its direct effect on health.
Maternal smoking during pregnancy is a major risk factor for preterm delivery, low birth weight, intrauterine growth retardation and intrauterine death.
Secondhand smoke clearly has very negative effects on unborn babies. It places women at greater risk for preterm birth, and their newborns are more likely to have RDS, NICU admissions, and immediate newborn complications.
This work was done to assess the serious health hazards of maternal smoking and pregnant exposure to passive smoke on neonates-at delivery.
This cross sectional study was done at Suez Canal University Hospital and subjects were collected from the delivery rooms of Obstetrics Department. from the period November 2012 to June 2013.
The studied subjects in our study were 120 neonates-at delivery
Group A (cases): (60) neonates-at delivery whom mothers were exposed to passive smoking during pregnancy or smoked during pregnancy.
Group B (control): (60) neonates-at delivery whom mothers did not smoke during pregnancy and were not exposed to passive smoking during pregnancy.
The studied cases were subjected to full medical history, full clinical examination laying stress on APGAR score, respiratory symptoms, neonatal reflexes, anthropometric measurments for gestational age, (weight, length and head circumference plotted against corresponding standard centile charts ) with assessment of body proportions.
About anthropometric measurement (weight, length and head circumference): Weight of neonates of group (A) whom exposed in utero to active or passive smoking of their mothers showed a highly significant reduction . But length and head circumference were non significantly reduced in neonates of group ( A).
In our study, the frequency of respiratory distress syndrome and respiratory complications of the newborn babies was significantly associated with maternal smoking or exposure to passive smoking during pregnancy.
Preterm birth was significantly associated with maternal exposure to smoking (active or passive) during pregnancy .
Occurrence of stillbirth among mothers exposed to passive smoking or actively smoked while pregnant was highly significant.
Finally, we concluded that maternal smoking or maternal exposure to passive smoke during pregnancy is significantly associated with ” increased incidence of low birth weight, stillbirth, preterm birth with its complications like respiratory distress syndrome”.