Socioeconomic inequality in birth weight and gestational age in Denmark 1996–2007: Using a family-based approach to explore alternative explanations
A large body of literature has reported associations between socioeconomic position and adverse pregnancy outcomes even in affluent egalitarian welfare states. This study explored the nature of this relationship by examining women who changed socioeconomic position between pregnancies and women who were siblings but were different in terms of socioeconomic position. Data consisted of 471,215 live born singletons born in Denmark 1997–2007 with at least one sibling or one first cousin. We examined parental educational attainment and household income in relation to preterm birth and small for gestational age using Cox regression. Household income was only weakly related to these outcomes. Paternal education was strongly associated with the outcomes only in the cohort analyses. Maternal education was inversely associated with preterm birth only in the cohort analyses, where the least educated women had the highest risk. Maternal education was inversely associated with the risk of small for gestational age in cohort analyses, attenuated between mothers who were siblings, and not present between children who were siblings. For example, the hazard ratio of preterm birth of women with a college/university degree when compared to women with only mandatory education was 0.64 (95% confidence interval: 0.60–0.67) in the cohort analysis, 0.90 (0.78–1.04) between mothers who were siblings, and 1.01 (0.82–1.24) between children who were siblings. The corresponding hazard ratios of small for gestational age were 0.54 (0.52–0.56), 0.72 (0.63–0.83), and 1.02 (0.84–1.24). This suggests that the associations were partly explained by factors shared between mothers who are siblings. In conclusion, the early life circumstances of mothers appear to be important in understanding the association between education, preterm birth and small for gestational age.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 76 (2013)
Issue (Month): C ()
|Contact details of provider:|| Web page: http://www.elsevier.com/wps/find/journaldescription.cws_home/315/description#description|
|Order Information:|| Postal: http://www.elsevier.com/wps/find/supportfaq.cws_home/regional|
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Sandewall, Örjan & Cesarini, David & Johannesson, Magnus, 2014.
"The co-twin methodology and returns to schooling — testing a critical assumption,"
Elsevier, vol. 26(C), pages 1-10.
- Sandewall, Örjan & Cesarini, David & Johannesson, Magnus, 2009. "The Co-twin Methodology and Returns to Schooling – Testing a Critical Assumption," Working Paper Series 806, Research Institute of Industrial Economics.
- Reime, Birgit & Ratner, Pamela A. & Tomaselli-Reime, Sandra N. & Kelly, Ann & Schuecking, Beate A. & Wenzlaff, Paul, 2006. "The role of mediating factors in the association between social deprivation and low birth weight in Germany," Social Science & Medicine, Elsevier, vol. 62(7), pages 1731-1744, April.
- Hoffmann, Rasmus, 2011. "Socioeconomic inequalities in old-age mortality: A comparison of Denmark and the USA," Social Science & Medicine, Elsevier, vol. 72(12), pages 1986-1992, June.
- Dowd, Jennifer Beam, 2007. "Early childhood origins of the income/health gradient: The role of maternal health behaviors," Social Science & Medicine, Elsevier, vol. 65(6), pages 1202-1213, September. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:eee:socmed:v:76:y:2013:i:c:p:1-7. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu)
If references are entirely missing, you can add them using this form.