2022
Rates of, and factors associated with, switching among generic levothyroxine preparations in commercially insured American adults
Brito JP, Deng Y, Ross JS, Choi NH, Graham DJ, Qiang Y, Rantou E, Wang Z, Zhao L, Shah ND, Lipska KJ. Rates of, and factors associated with, switching among generic levothyroxine preparations in commercially insured American adults. Endocrine 2022, 76: 349-358. PMID: 35107758, PMCID: PMC9210352, DOI: 10.1007/s12020-022-02987-z.Peer-Reviewed Original ResearchConceptsL-thyroxineLarge administrative claims databaseMultivariate logistic regression analysisAdministrative claims databaseThyroid hormone valuesLogistic regression analysisNumber of pharmaciesSettingRetrospective studyPrescription fillsTreatment initiationGuideline recommendationsThyroid surgeryClaims databaseFill dateMean ageHormone valuesLevothyroxine preparationsMore pharmaciesPractice guidelinesAdditional studiesGeneric preparationsNational dataAmerican adultsPatientsRegression analysis
2021
Cardiovascular outcomes and rates of fractures and falls among patients with brand-name versus generic L-thyroxine use
Brito JP, Ross JS, Deng Y, Sangaralingham L, Graham DJ, Qiang Y, Wang Z, Yao X, Zhao L, Smallridge RC, Bernet V, Shah ND, Lipska KJ. Cardiovascular outcomes and rates of fractures and falls among patients with brand-name versus generic L-thyroxine use. Endocrine 2021, 74: 592-602. PMID: 34089480, PMCID: PMC9210353, DOI: 10.1007/s12020-021-02779-x.Peer-Reviewed Original ResearchConceptsCongestive heart failureRate of fracturesCardiovascular outcomesL-thyroxineRate of fallHeart failureHip fractureAtrial fibrillationMyocardial infarctionNational administrative claims databasePropensity-matched patientsAdministrative claims databaseRate of hospitalizationMIU/L.Main outcome measuresSignificant differencesDose subgroupsHospitalization ratesClaims databaseThyroid cancerInpatient settingBaseline thyroidHormone levelsOutcome measuresPatients