Publications by authors named "Ya-Chen Shih"
This study examined how patient characteristics, physician characteristics, the physician's interaction with the health care system, and the physician's interaction with the patient influenced whether patients with a depression diagnosis received an antidepressant prescription and whether they received a SSRI antidepressant, a non-SSRI antidepressant, or both. The 1998 National Ambulatory Medical Care Survey (NAMCS), in the USA, was used for the analysis. Logistic regression was used to examine what characteristics influenced whether a patient with a depression diagnosis received an antidepressant prescription.
View Article and Find Full Text PDFThis study uses national databases to examine the impact of irritable bowel syndrome (IBS) on resource utilization in the United States. Approximately 1.5-2.
View Article and Find Full Text PDFArticle Synopsis
- - The FDA is considering changing the status of second-generation antihistamines (SGAs) from prescription to over-the-counter, prompting a review of its potential economic impacts on social welfare.
- - A study analyzed existing literature on similar medication switches and utilized microeconomic models to forecast changes in pricing and consumer surplus that could arise from making SGAs available OTC.
- - Despite potential for lower prices in the OTC market, the overall effect on social welfare is uncertain and depends on whether increased consumer benefits outweigh any losses in surplus, particularly if there are cost differences between the prescription and OTC markets.