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.
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Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS)
2014
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oai:scielo:S0213-911120140002000112014-07-18Revisiting the 'LowBirth Weight paradox' using a model-based definitionJuárez,SolPloubidis,George B.Clarke,Lynda Spain Low birthweight Birthweight Immigrant Migrant workers 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.Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS)Gaceta Sanitaria v.28 n.2 20142014-04-01journal articletext/htmlhttp://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0213-91112014000200011en |
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Juárez,Sol Ploubidis,George B. Clarke,Lynda |
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Juárez,Sol Ploubidis,George B. Clarke,Lynda Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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Juárez,Sol Ploubidis,George B. Clarke,Lynda |
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Juárez,Sol |
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Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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Revisiting the 'LowBirth Weight paradox' using a model-based definition |
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revisiting the 'lowbirth weight paradox' using a model-based definition |
description |
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. |
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Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS) |
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2014 |
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http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0213-91112014000200011 |
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AT juarezsol revisitingthelowbirthweightparadoxusingamodelbaseddefinition AT ploubidisgeorgeb revisitingthelowbirthweightparadoxusingamodelbaseddefinition AT clarkelynda revisitingthelowbirthweightparadoxusingamodelbaseddefinition |
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