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RESEARCH PRODUCT
A systematic review of maternal smoking during pregnancy and fetal measurements with meta-analysis
Salem AlramadhanHerman T. Den DekkerGeir JacobsenWojciech SobalaMiriam AbrahamSteve TurnerKeith M. GodfreyCarmen IñiguezLiesbeth DuijtsPeter C. HindmarshTorstein VikWojciech HankeGraham DevereuxVincent W. V. JaddoeSarah Croziersubject
Embryologysmoking habitsPhysiologyMaternal Healthlcsh:MedicineFetal DevelopmentHabitsDatabase and Informatics Methods0302 clinical medicineMathematical and Statistical TechniquesPregnancyMedicine and Health SciencesSmoking HabitsBirth Weight030212 general & internal medicineFemurDatabase Searchinglcsh:ScienceMusculoskeletal System2. Zero hunger030219 obstetrics & reproductive medicineMultidisciplinaryFetal Growth RetardationObstetricsSmokingObstetrics and GynecologyResearch AssessmentFetal Measurements3. Good healthPhysiological ParametersMeta-analysisPregnancy Trimester SecondPhysical SciencesGestationFemaleAnatomyStatistics (Mathematics)Research Articlemedicine.medical_specialtySystematic ReviewsBirth weightPregnancy Trimester Thirdsystematic reviewsStandard scoreResearch and Analysis Methodsregnancydatabase searching03 medical and health sciencesmedicineHumansFemurStatistical MethodsSkeletonGynecologyPregnancyFetusBehaviorFetusesbusiness.industrylcsh:RBody WeightBiology and Life Sciencesmedicine.diseasemeta-analysisPregnancy Trimester FirstWomen's Healthfetuseslcsh:QfemurTobacco Smoke PollutionbusinessHeadMathematicsMeta-AnalysisDevelopmental Biologybright weightdescription
Maternal smoking during pregnancy is linked to reduced birth weight but the gestation at onset of this relationship is not certain. We present a systematic review of the literature describing associations between maternal smoking during pregnancy and ultrasound measurements of fetal size, together with an accompanying meta-analysis. Studies were selected from electronic databases (OVID, EMBASE and Google Scholar) that examined associations between maternal smoking or smoke exposure and antenatal fetal ultrasound measurements. Outcome measures were first, second or third trimester fetal measurements. There were 284 abstracts identified, 16 papers were included in the review and the meta-analysis included data from eight populations. Maternal smoking was associated with reduced second trimester head size (mean reduction 0.09 standard deviation (SD) [95% CI 0.01, 0.16]) and femur length (0.06 [0.01, 0.10]) and reduced third trimester head size (0.18 SD [0.13, 0.23]), femur length (0.27 SD [0.21, 0.32]) and estimated fetal weight (0.18 SD [0.11, 0.24]). Higher maternal cigarette consumption was associated with a lower z score for head size in the second (mean difference 0.09 SD [0, 0.19]) and third (0.15 SD [0.03, 0.26]) trimesters compared to lower consumption. Fetal measurements were not reduced for those whose mothers quit before or after becoming pregnant compared to mothers who had never smoked. Maternal smoking during pregnancy is associated with reduced fetal measurements after the first trimester, particularly reduced head size and femur length. These effects may be attenuated if mothers quit or reduce cigarette consumption during pregnancy. The study was supported by the European Cooperation in Science and Technology, who provided funds for publication. KMG is supported by the National Institute for Health Research through the NIHR Southampton Biomedical Research Centre and by the European Union's Seventh Framework Programme (FP7/2007-2013), projects Early Nutrition and ODIN under grant agreement numbers 289346 and 613977.
year | journal | country | edition | language |
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2017-01-01 |