Revisiting the 'LowBirth Weight paradox' using a model-based definition
Introduction: Immigrant mothers in Spain have a lower risk of delivering Low BirthWeight (LBW) babies in comparison to Spaniards (LBW paradox). This study aimed at revisiting this finding by applying a model-based threshold as an alternative to the conventional definition of LBW. Methods: Vital information data from Madrid was used (2005-2006). LBW was defined in two ways (less than 2500 g and Wilcox's proposal). Logistic and linear regression models were run. Results: According to common definition of LBW (less than 2500 g) there is evidence to support the LBW paradox in Spain. Nevertheless, when an alternative model-based definition of LBW is used, the paradox is only clearly present in mothers from the rest of Southern America, suggesting a possible methodological bias effect. Conclusion: In the future, any examination of the existence of the LBW paradox should incorporate model-based definitions of LBW in order to avoid methodological bias.
Main Authors: | Juárez,Sol, Ploubidis,George B., Clarke,Lynda |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS)
2014
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Online Access: | http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0213-91112014000200011 |
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