Maternal Smoking and Down Syndrome: The Confounding Effect of Maternal Age
نویسندگان
چکیده
منابع مشابه
Maternal smoking and Down syndrome: the confounding effect of maternal age.
Inconsistent results have been reported from studies evaluating the association of maternal smoking with birth of a Down syndrome child. Control of known risk factors, particularly maternal age, has also varied across studies. By using a population-based case-control design (775 Down syndrome cases and 7,750 normal controls) and Washington State birth record data for 1984-1994, the authors exam...
متن کاملDown syndrome and maternal age in South Glamorgan.
Seventy cases of Down syndrome have been ascertained in South Glamorgan during the period 1968 to 1976. This gives an overall incidence of 1 in 658 live births. Analysis of the data on the basis of single years of maternal age gives an incidence of 1 in 200 by 36 years, 1 in 100 by 40 years, and 1 in 50 by 44 years. All incidence figures are for live births at age of delivery.
متن کامل[Maternal age and Down syndrome in Northeast Brazil].
This study analyzes the association between advanced maternal age and increased incidence of Down syndrome in neonates, based on a population sample from the State of Bahia in Northeast Brazil. Age of the mothers of 220 Down syndrome subjects was investigated, and age distribution was compared to that of the population control group, 220 mothers of subjects without Down syndrome. The proportion...
متن کاملThe Effect of Maternal Age on Childhood Asthma
Some studies indicate that children born to younger mothers are at a higher risk of wheezing and asthma. To investigate the maternal age associated with asthma in children, a case-control study on 310 asthmatic and 310 non-asthmatic children aged 3 to 4 years was organized during a one-year period. A questionnaire was used to obtain information about the child’s personal susceptibility factor...
متن کاملAdvanced Maternal Grandmother Age and Maternal Age as Risk Factors for Down Syndrome in a Group of Jordanian Families
Objectives: To study whether advanced maternal age and maternal grandmother age are associated with increased risk of Down syndrome siblings in a group of Jordanian families. Methods: This study was conducted on 127 confirmed Down syndrome cases with the age range of 18 weeks gestation to 15 years old, which were referred between the period of 2005-2008 for cytogenetic analysis at the Cytogenti...
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ژورنال
عنوان ژورنال: American Journal of Epidemiology
سال: 1999
ISSN: 0002-9262,1476-6256
DOI: 10.1093/oxfordjournals.aje.a009831