Document Detail

Linkage of mother-baby pairs in the German Pharmacoepidemiological Research Database.
MedLine Citation:
PMID:  21351307     Owner:  NLM     Status:  In-Data-Review    
PURPOSE: Administrative healthcare databases are increasingly being used to investigate potential drug risks in pregnancy. Our study aimed to develop an algorithm for linkage of mother-baby pairs (MBPs) in the German Pharmacoepidemiological Research Database (GePaRD) as a prerequisite for such studies.
METHODS: GePaRD contains sociodemographic data, drug dispensations, ambulatory, and hospital information on more than 14 million insurants from four German statutory health insurances (SHIs) covering all regions in Germany. Linkage was based on co-insurance information of the newborn with the potential mother (direct linkage) or of both potential mother and newborn with the potential father (indirect linkage). Linkage is not possible if the baby is co-insured with the father and the mother is self-insured. Further information on birth or childbed was used to validate the potential mother as true mother in MBP. Descriptive comparisons between linked and unlinked mothers were conducted.
RESULTS: Of 323 993 newborns identified between 2004 and 2006, 250 355 (77.3%) could be linked in MBP. Of those, 189 702 (75.8%) MBP were based on direct linkage. Mean age was similar in linked (31.1 years, standard deviation (SD = 5.4) and unlinked (31.8 years, SD = 5.5) mothers as was the proportion of caesarean sections in both groups (28.9% vs. 29.3%).
CONCLUSIONS: The developed algorithm permits linkage of a great number of newborns with their mothers and creates a potential data source for investigation of drug risks in pregnancy. Further validation studies are needed also including information on pregnancies not resulting in live births. Copyright © 2010 John Wiley & Sons, Ltd.
Edeltraut Garbe; Marc Suling; Sebastian Kloss; Christina Lindemann; Ulrike Schmid
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Publication Detail:
Type:  Journal Article     Date:  2010-11-11
Journal Detail:
Title:  Pharmacoepidemiology and drug safety     Volume:  20     ISSN:  1099-1557     ISO Abbreviation:  Pharmacoepidemiol Drug Saf     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9208369     Medline TA:  Pharmacoepidemiol Drug Saf     Country:  England    
Other Details:
Languages:  eng     Pagination:  258-64     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 John Wiley & Sons, Ltd.
Bremen Institute for Prevention Research and Social Medicine, University of Bremen, Germany.
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