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Impact of maternal age on obstetric and neonatal outcome with emphasis on primiparous adolescents and older women: a Swedish Medical Birth Register Study Marie Blomberg, Rasmus Birch Tyrberg, Preben Kjølhede

To cite: Blomberg M, Birch Tyrberg R, Kjølhede P. Impact of maternal age on obstetric and neonatal outcome with emphasis on primiparous adolescents and older women: a Swedish Medical Birth Register Study. BMJ Open 2014;4:e005840. doi:10.1136/bmjopen-2014005840 ▸ Prepublication history for this paper is available online. To view these files please visit the journal online (http://dx.doi.org/10.1136/ bmjopen-2014-005840). Received 2 June 2014 Revised 17 September 2014 Accepted 24 September 2014

Department of Obstetrics and Gynaecology and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden Correspondence to Dr Marie Blomberg; [email protected]

ABSTRACT Objectives: To evaluate the associations between maternal age and obstetric and neonatal outcomes in primiparous women with emphasis on teenagers and older women. Design: A population-based cohort study. Setting: The Swedish Medical Birth Register. Participants: Primiparous women with singleton births from 1992 through 2010 (N=798 674) were divided into seven age groups:

Impact of maternal age on obstetric and neonatal outcome with emphasis on primiparous adolescents and older women: a Swedish Medical Birth Register Study.

To evaluate the associations between maternal age and obstetric and neonatal outcomes in primiparous women with emphasis on teenagers and older women...
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