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The importance of maternal BMI on infants birth weight in four BMI groups for the period 1978-2001
Linköping University, Department of Clinical and Experimental Medicine, Obstetrics and gynecology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Gynecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Obstetrics and gynecology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Gynecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Obstetrics and gynecology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Gynecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Obstetrics and gynecology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Gynecology and Obstetrics in Linköping.
2009 (English)In: ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA, ISSN 0001-6349, Vol. 88, no 4, 391-396 p.Article in journal (Refereed) Published
Abstract [en]

Objective. To study whether increased maternal weight and other factors of importance is associated with higher birth weights of the children over a period of almost 25 years. Design. Retrospective cohort study. Setting. Delivery wards in southeast Sweden. Sample. A total of 4,330 delivered women and their children from the years 1978, 1986, 1992, 1997, and 2001. Methods. Analysis of covariance was used to evaluate the importance of the mothers body mass index (BMI) on the childrens birth weights during the study years and smoking, parity, employment, gestational age, and the age of the mothers were adjusted for. Main outcome measures. Weight of the offspring in relation to maternal BMI and possible confounders such as smoking, parity, employment, gestational age, and the age of the mother. Results. Between 1978 and 1992, there was an increase in birth weight in each of the four BMI categories (i.e. BMI20, 20-24.9, 25-29.9 and 30, respectively) even after adjustments were made for relevant background characteristics (p0.001). However, between 1992 and 2001, the birth weight for children whose mothers had a BMI of less than 20 or between 20 and 24.9 decreased (p0.001). For almost every study year, the mothers BMI was of significant influence on the childrens birth weights. However, the proportion of variance explained by the models (i.e. the adjusted R2) was not substantially altered when the mothers BMI was excluded from the models. Conclusion. Maternal BMI is of significance to explain trends in infants birth weight over time, but not of sole importance.

Place, publisher, year, edition, pages
2009. Vol. 88, no 4, 391-396 p.
Keyword [en]
Obesity, children, delivery, pregnancy
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-17754DOI: 10.1080/00016340902807199OAI: oai:DiVA.org:liu-17754DiVA: diva2:211827
Available from: 2009-04-18 Created: 2009-04-17 Last updated: 2009-08-17

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Brynhildsen, JanSydsjö, AdamEkholm, KatarinaJosefsson, Ann

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Obstetrics and gynecology Faculty of Health SciencesDepartment of Gynecology and Obstetrics in Linköping
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