Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives

The aim of the current study was to investigate the urban-rural disparity of prescribing generics, which were usually cheaper than branded drugs, within the universal health insurance system in Taiwan. Data sources were the cohort datasets of National Health Insurance Research Database with claims d...

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Main Authors: Chia-Chen Hsu, Chia-Lin Chou, Shu-Chiung Chiang, Tzeng-Ji Chen, Li-Fang Chou, Yueh-Ching Chou
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/905213
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author Chia-Chen Hsu
Chia-Lin Chou
Shu-Chiung Chiang
Tzeng-Ji Chen
Li-Fang Chou
Yueh-Ching Chou
author_facet Chia-Chen Hsu
Chia-Lin Chou
Shu-Chiung Chiang
Tzeng-Ji Chen
Li-Fang Chou
Yueh-Ching Chou
author_sort Chia-Chen Hsu
collection DOAJ
description The aim of the current study was to investigate the urban-rural disparity of prescribing generics, which were usually cheaper than branded drugs, within the universal health insurance system in Taiwan. Data sources were the cohort datasets of National Health Insurance Research Database with claims data in 2010. The generic prescribing ratios of dihydropyridine (DHP) derivatives (the proportion of DHP prescribed as generics to all prescribed DHP) of medical facilities were examined against the urbanization levels of the clinic location. Among the total 21,606,914 defined daily doses of DHP, 35.7% belonged to generics. The aggregate generic prescribing ratio rose from 6.7% at academic medical centers to 15.3% at regional hospitals, 29.4% at community hospital, and 66.1% at physician clinics. Among physician clinics, the generic prescribing ratio in urban areas was 63.9 ± 41.0% (mean ± standard deviation), lower than that in suburban (69.6 ± 38.7%) and in rural (74.1% ± 35.3%). After adjusting the related factors in the linear regression model, generic prescribing ratios of suburban and rural clinics were significantly higher than those of urban clinics (β=0.043 and 0.077; P=0.024 and 0.008, resp.). The generic prescribing ratio of the most popular antihypertensive agents at a clinic was reversely associated with the urbanization level.
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language English
publishDate 2014-01-01
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series The Scientific World Journal
spelling doaj-art-3034a876414b4052a0f52155a1a7685b2025-02-03T05:58:58ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/905213905213Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine DerivativesChia-Chen Hsu0Chia-Lin Chou1Shu-Chiung Chiang2Tzeng-Ji Chen3Li-Fang Chou4Yueh-Ching Chou5Department of Pharmacy, Taipei Veterans General Hospital, Taipei 11217, TaiwanDepartment of Pharmacy, Taipei Veterans General Hospital, Taipei 11217, TaiwanSchool of Medicine, Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei 11221, TaiwanSchool of Medicine, Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei 11221, TaiwanDepartment of Public Finance, National Chengchi University, Taipei 11605, TaiwanDepartment of Pharmacy, Taipei Veterans General Hospital, Taipei 11217, TaiwanThe aim of the current study was to investigate the urban-rural disparity of prescribing generics, which were usually cheaper than branded drugs, within the universal health insurance system in Taiwan. Data sources were the cohort datasets of National Health Insurance Research Database with claims data in 2010. The generic prescribing ratios of dihydropyridine (DHP) derivatives (the proportion of DHP prescribed as generics to all prescribed DHP) of medical facilities were examined against the urbanization levels of the clinic location. Among the total 21,606,914 defined daily doses of DHP, 35.7% belonged to generics. The aggregate generic prescribing ratio rose from 6.7% at academic medical centers to 15.3% at regional hospitals, 29.4% at community hospital, and 66.1% at physician clinics. Among physician clinics, the generic prescribing ratio in urban areas was 63.9 ± 41.0% (mean ± standard deviation), lower than that in suburban (69.6 ± 38.7%) and in rural (74.1% ± 35.3%). After adjusting the related factors in the linear regression model, generic prescribing ratios of suburban and rural clinics were significantly higher than those of urban clinics (β=0.043 and 0.077; P=0.024 and 0.008, resp.). The generic prescribing ratio of the most popular antihypertensive agents at a clinic was reversely associated with the urbanization level.http://dx.doi.org/10.1155/2014/905213
spellingShingle Chia-Chen Hsu
Chia-Lin Chou
Shu-Chiung Chiang
Tzeng-Ji Chen
Li-Fang Chou
Yueh-Ching Chou
Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
The Scientific World Journal
title Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
title_full Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
title_fullStr Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
title_full_unstemmed Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
title_short Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
title_sort urban rural disparity of generics prescription in taiwan the example of dihydropyridine derivatives
url http://dx.doi.org/10.1155/2014/905213
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