Identifying the association between health care resource utilization and switching of biologics in rheumatoid arthritis
| Autor: | Lu, Jackie Yu-Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Druh dokumentu: | Diplomová práce |
| Popis: | Objectives: To identify the predictors of switching from the first biologic to a second biologic in rheumatoid arthritis (RA) patients newly initiated on biologic treatments. Methods: Adult RA patients (18-64 years old) initiated on adalimumab, etanercept, infliximab, certolizumab, golimumab, abatacept, rituximab, tocilizumab, or anakinra between 2009 and 2011 were identified using a commercial claims database. Switching patterns were examined within one year after biologic initiation using descriptive statistics. Health care resource utilization (HCRU) variables (the number of 30-day supplies for steroid and DMARDs, and the claim counts for RA-related outpatient visits, radiographic, laboratory, intra-articular injections, rehabilitation, and surgical procedures) were assessed within one year prior to the switch date for switchers or the end of the study period for non-switchers. Pairwise comparisons of patient characteristics and HCRU variables were conducted using t-tests, Mann-Whitney U tests, and Chi-squared tests. Multiple logistic regressions were used to identify HCRU predictors of switching. Results: A total of 12,370 patients were included in the analysis. The switch rate within one year after biologic initiation was 18.4%, and the median time to switch was 181 days. More females switched compared to males (19.2% vs. 15.9%, p text |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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