Price regulation, new entry, and information shock on pharmaceutical market in Taiwan: a nationwide data-based study from 2001 to 2004.

BMC Health Services Research
Fei-Yuan HsiaoWeng-Foung Huang

Abstract

Using non-steroidal anti-inflammatory drugs (NSAIDs) as a case, we used Taiwan's National Health Insurance (NHI) database, to empirically explore the association between policy interventions (price regulation, new drug entry, and an information shock) and drug expenditures, utilization, and market structure between 2001 and 2004. All NSAIDs prescribed in ambulatory visits in the NHI system during our study period were included and aggregated quarterly. Segmented regression analysis for interrupted time series was used to examine the associations between two price regulations, two new drug entries (cyclooxygennase-2 inhibitors) and the rofecoxib safety signal and expenditures and utilization of all NSAIDs. Herfindahl index (HHI) was applied to further examine the association between these interventions and market structure of NSAIDs. New entry was the only variable that was significantly correlated with changes of expenditures (positive change, p = 0.02) and market structure of the NSAIDs market in the NHI system. The correlation between price regulation (first price regulation, p = 0.62; second price regulation, p = 0.26) and information shock (p = 0.31) and drug expenditure were not statistically significant. There was no sign...Continue Reading

References

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Citations

Apr 19, 2015·Daru : Journal of Faculty of Pharmacy, Tehran University of Medical Sciences·Jason C Hsu, Christine Y Lu
Oct 17, 2014·The Cochrane Database of Systematic Reviews·Angela AcostaAndrew D Oxman
Apr 23, 2019·Journal of Market Access & Health Policy·Naina R VergheseEric Andrew Finkelstein
Apr 22, 2017·Journal of Health Services Research & Policy·Shou-Hsia ChengChi-Chuan Wang

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