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Curr Med Res Opin. 2009 Nov;25(11):2703-9. doi: 10.1185/03007990903307755.

Healthcare costs of GERD and acid-related conditions in pediatric patients, with comparison between histamine-2 receptor antagonists and proton pump inhibitors.

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  • 1Astellas Pharma US, Inc., Deerfield, IL, USA.

Abstract

BACKGROUND:

Gastroesophageal reflux disease and acid-related conditions (GERD/ARC) are common in pediatric practice but their costs have not been well characterized.

AIM:

To compare healthcare costs (HCC) and healthcare utilization (HCU) of pediatric GERD/ARC between groups of GERD/ARC patients initiated on histamine-2 receptor antagonists (H(2)RAs) or proton pump inhibitors (PPIs) and matched controls.

PATIENTS AND METHODS:

Children (age < 18 years) diagnosed with GERD or ARC (exploratory category) were identified from a large US claims database (1999-2005) using ICD-9 codes. Costs of pediatric GERD/ARC were estimated by comparing 6-month post-diagnosis HCC between cases and matched controls. GERD/ARC-related HCC and HCU for the year 2005 were further compared between GERD/ARC patients initiated with PPIs vs. H(2)RAs in terms of the cost differences relative to pre-initiation (difference-in-difference) and using multivariate regression to adjust for demographics, pre-treatment health status and pre-treatment costs.

RESULTS:

A total of 27 865 matched pairs were identified. GERD/ARC patients incurred on average more 6-month total HCC than controls ($2386). In 2005, 1010 pediatric patients were initiated on H(2)RAs or PPIs. About 61% were initiated on PPIs and incurred 1.8 times higher 6-month post-initiation GERD/ARC-related HCC than H(2)RA-initiated patients ($661 vs. $372, p < 0.001). Although total 6-month GERD/ARC-related HCC increased for both PPI- and H(2)RA-treated patients, the increase was 30% less for PPI-treated patients ($173 vs. $246, p = 0.521) in the difference-in-difference analysis and 69% less in the multivariate analysis ($109 vs. $347, p = 0.040).

LIMITATIONS:

The use of an exploratory definition for GERD/ARC, administrative claims data and potential coding errors in diagnosis codes used in selection process may limit the generalizability of the results.

CONCLUSION:

Pediatric GERD/ARC patients incurred significantly higher healthcare costs compared to similar children without GERD/ARC. Compared to patients initiated with H(2)RAs, patients initiated with PPIs had more baseline comorbidities, and lower GERD/ARC-related HCC after beginning treatment.

[PubMed - indexed for MEDLINE]
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