Shiu-Dong Chung1, Shih-Han Hung2, Herng-Ching Lin3, Kuan-Chen Chen4. 1. Department of Surgery, Far Eastern Memorial Hospital, Banciao, Taipei, Taiwan; Graduate Program in Biomedical Informatics, College of Informatics, Yuan-Ze University, Chung-Li, Taiwan; Sleep Research Center, Taipei Medical University Hospital, Taipei, Taiwan. 2. Department of Otolaryngology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Otolaryngology, School of Medicine, Taipei Medical University, Taiwan. 3. Sleep Research Center, Taipei Medical University Hospital, Taipei, Taiwan; School of Health Care Administration, Taipei Medical University, Taipei, Taiwan. Electronic address: henry11111@tmu.edu.tw. 4. School of Health Care Administration, Taipei Medical University, Taipei, Taiwan.
Abstract
PURPOSE: This study attempted to investigate the effects of a tonsillectomy on utilization of medical resources for acute respiratory infections by comparing numbers and costs of clinic visits within 1year before and after a tonsillectomy. MATERIALS AND METHODS: Data for this study were retrieved from the Taiwan Longitudinal Health Insurance Database 2005. The study includes 481 patients aged 18-80years who underwent a tonsillectomy and 481 comparison patients. A multivariate regression model employing difference-in-difference was carried out to assess the independent association between a tonsillectomy and the number and costs of clinic visits. RESULTS: We found that for patients who underwent a tonsillectomy, the mean number of clinic visits for acute respiratory care 1year before and after the index date significantly decreased from 7.3 to 4.2 (p<0.001). However, for the comparison group, there was no significant difference in the number (p=0.540) or costs (p=0.221) of clinic visits for acute respiratory care 1year before and after the index date. A multivariate regression model revealed that a tonsillectomy was associated with a reduction of 3.38 in the mean number of clinic visits for acute respiratory care (p<0.001). In other words, a tonsillectomy reduced by 46.3% (3.38/7.3) the number of clinic visits for acute respiratory care after adjusting for sociodemographic characteristics and medical comorbidities compared to comparison patients. CONCLUSIONS: This study demonstrated that a tonsillectomy was of substantial benefit to adult patients in that it provides decreased healthcare utilization for acute respiratory infections.
PURPOSE: This study attempted to investigate the effects of a tonsillectomy on utilization of medical resources for acute respiratory infections by comparing numbers and costs of clinic visits within 1year before and after a tonsillectomy. MATERIALS AND METHODS: Data for this study were retrieved from the Taiwan Longitudinal Health Insurance Database 2005. The study includes 481 patients aged 18-80years who underwent a tonsillectomy and 481 comparison patients. A multivariate regression model employing difference-in-difference was carried out to assess the independent association between a tonsillectomy and the number and costs of clinic visits. RESULTS: We found that for patients who underwent a tonsillectomy, the mean number of clinic visits for acute respiratory care 1year before and after the index date significantly decreased from 7.3 to 4.2 (p<0.001). However, for the comparison group, there was no significant difference in the number (p=0.540) or costs (p=0.221) of clinic visits for acute respiratory care 1year before and after the index date. A multivariate regression model revealed that a tonsillectomy was associated with a reduction of 3.38 in the mean number of clinic visits for acute respiratory care (p<0.001). In other words, a tonsillectomy reduced by 46.3% (3.38/7.3) the number of clinic visits for acute respiratory care after adjusting for sociodemographic characteristics and medical comorbidities compared to comparison patients. CONCLUSIONS: This study demonstrated that a tonsillectomy was of substantial benefit to adult patients in that it provides decreased healthcare utilization for acute respiratory infections.
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