A Real-World Evaluation of Primary Medication Nonadherence in Patients with Nonvalvular Atrial Fibrillation Prescribed Oral Anticoagulants in the United States.
Am J Cardiovasc Drugs
; 23(5): 559-572, 2023 Sep.
Article
de En
| MEDLINE
| ID: mdl-37301789
ABSTRACT
BACKGROUND:
Nonadherence to oral anticoagulants (OACs) is a challenge to stroke risk reduction in patients with nonvalvular atrial fibrillation (NVAF). Data on primary medication nonadherence (PMN) in NVAF are lacking.OBJECTIVES:
Our aim was to assess the rates and predictors of PMN among NVAF patients who were newly prescribed an OAC.METHODS:
This was a retrospective database analysis of linked healthcare claims and electronic health record data. Adult NVAF patients with a prescription order for an OAC (apixaban, rivaroxaban, dabigatran, or warfarin) between January 2016 and June 2019 were identified (date of first prescription order = index date). Patients had a 1-year baseline and a 6-month post-index period to assess the rates of PMN, defined as having a prescription order but no paid claim for any OAC on or within 30 days after the index date. Sensitivity analyses explored 60-, 90- and 180-day PMN thresholds. Logistic regression models were used to examine the predictors of PMN.RESULTS:
Among 20,393 patients, the overall 30-day PMN rate was 28.4%; PMN rates decreased to 17% with a 180-day threshold. PMN was numerically lowest for warfarin among OACs and numerically lowest for apixaban among direct OACs. A CHA2DS2-VASc score of ≥ 3, commercial insurance, and African American race were associated with higher odds of PMN.CONCLUSIONS:
More than one-quarter of patients experienced PMN within 30 days of their initial prescription order. This rate decreased over a longer period, suggesting a delay in fills. Understanding the factors associated with PMN is warranted to develop effective interventions for improving OAC treatment rates in NVAF.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Fibrillation auriculaire
/
Accident vasculaire cérébral
Type d'étude:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limites:
Adult
/
Humans
Pays/Région comme sujet:
America do norte
Langue:
En
Journal:
Am J Cardiovasc Drugs
Sujet du journal:
ANGIOLOGIA
/
CARDIOLOGIA
/
TERAPIA POR MEDICAMENTOS
Année:
2023
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique