Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/8371
Type: Journal article
Title: The contribution of maternal smoking to preterm birth, small for gestational age and low birthweight among Aboriginal and non-Aboriginal births in South Australia
Author: Chan, A.
Keane, R.
Robinson, J.
Citation: Medical Journal of Australia, 2001; 174(8):389-393
Publisher: Australasian Med Publ Co Ltd
Issue Date: 2001
ISSN: 0025-729X
1326-5377
Abstract: OBJECTIVES: To determine the contribution of maternal smoking to preterm birth (< 37 weeks' gestation), small for gestational age (SGA, birthweight < 10th percentile for gestational age) and low birthweight (< 2500 g) among Aboriginal and non-Aboriginal births in South Australia. DESIGN: Retrospective cohort analysis of population-based perinatal data. SETTING: The State of South Australia, population 1.5 million. PARTICIPANTS: 36059 women (of whom 851 were Aboriginal women) who had singleton births in 1998-1999. MAIN OUTCOME MEASURES: Relative risks and population-attributable risks of preterm birth, SGA and low birthweight from smoking in the second half of pregnancy, by age and Aboriginality. RESULTS: Aboriginal women had a higher rate of smoking in pregnancy than non-Aboriginal women (57.8% v 24.0% at the first antenatal visit) and high rates for all age groups, while the rates decreased with age among non-Aboriginal women. Heavy smoking increased with age, and Aboriginal women were heavier smokers. Women who smoked had elevated relative risks of preterm birth (1.64), SGA (2.28) and low birthweight (2.52), and all these showed a dose-response relationship. Among Aboriginal (versus non-Aboriginal) births, population-attributable risks were significantly higher for SGA (48% v 21%, and 59% for births to Aboriginal teenagers), low birthweight (35% v 23%) and preterm birth (20% v 11%). CONCLUSIONS: Health promotion programs, with a focus on smoking cessation and reducing uptake of smoking, need to be implemented in an appropriate cultural context, especially among young Aboriginal women. Such a program is being developed in South Australia.
Keywords: Humans; Risk Factors; Smoking; Pregnancy; Adult; Infant, Newborn; Infant, Low Birth Weight; Infant, Small for Gestational Age; Oceanic Ancestry Group; South Australia; Female; Obstetric Labor, Premature
RMID: 0020010856
Description (link): http://www.mja.com.au/public/issues/contents174.html#16Apr
Appears in Collections:Obstetrics and Gynaecology publications

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