alexa Injectable medication for the treatment of multiple sclerosis: the influence of self-efficacy expectations and injection anxiety on adherence and ability to self-inject.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Mohr DC, Boudewyn AC, Likosky W, Levine E, Goodkin DE

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Abstract The management of many chronic illnesses involves medications that must be injected on a frequent basis. With fewer support resources available, patients are increasingly being obliged to manage injectable medications themselves. Interferon beta-1a (IFNbeta-1a), recommended for the treatment of multiple sclerosis (MS), must be injected intramuscularly on a weekly basis. Patients are generally advised and taught to self-inject, if possible. This longitudinal study examined cognitive and affective contributions to the ability to self-inject and adherence to IFNbeta-1a over 6 months following initiation of medication. Participants were 101 patients with a relapsing form of MS. Injection self-efficacy expectations, injection anxiety, adherence expectations, method of injection administration, and 6-month adherence to IFNbeta-1a were fitted to a path analytic model. Pretreatment injection self-efficacy expectations were significantly related to 6-month adherence. This relation was mediated by the patient's ability to self-inject. Patients 'experienced level of injection anxiety was related to adherence but not to method of injection.
This article was published in Ann Behav Med and referenced in Journal of Addiction Research & Therapy

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