Assessing Adherence to Asthma Medication and Inhaler Regimens: A Psychometric Analysis of Adult Self-Report Scales

Brooks, C. Michael; Richards, James M.; Kohler, Connie L.; Soong, Seng‐Jaw; Martin, Benjamin; Windsor, Richard A.; Bailey, William C.

doi:10.1097/00005650-199403000-00008

Cited by 106 publications

(93 citation statements)

References 9 publications

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“…For example, coefficient alpha reliability estimates have ranged from low (Pratt et al, 2001;Shalansky et al, 2004), to adequate (Brooks et al, 1994;Morisky et al, 1986), to high (Erickson et al, 2001). Given that the MAQ is a four-item scale with a yes-no answer format, coefficient alpha may not be the best measure of reliability, calling these results into question (Schmitt, 1996).…”

Section: The Medication Adherence Questionnairementioning

confidence: 99%

Factor structure and validity of the Medication Adherence Questionnaire (MAQ) with cigarette smokers trying to quit

Toll

McKee

Martin

et al. 2007

CNTR

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The Medication Adherence Questionnaire (MAQ) is a scale used to evaluate adherence to medications. The present study assessed the factor structure and validity of the MAQ with cigarette smokers. A principal components analysis was conducted on MAQ scores from a sample of smokers presenting for treatment in a clinical trial of naltrexone and nicotine patch for smoking cessation (N=385). Indices of convergent and predictive validity were tested using electronic medication caps for naltrexone, nicotine patch counts, plasma drug levels of naltrexone, and treatment outcomes. The principal components analysis revealed two factors. Factor 1, labeled "unintentional nonadherence," measured the extent to which individuals were nonadherent because they were careless or forgot to take their medications. Factor 2, labeled "purposeful nonadherence," assessed nonadherence related to purposefully stopping medication use after feeling better or worse. Only the second factor was shown to have good convergent and predictive validity. Specifically, this factor was related to pilltaking behavior measured with electronic medication caps and drug plasma levels and nicotine patch use based on nicotine patch count data, and it was associated with smoking cessation outcome. Thus the purposeful nonadherence factor of the MAQ may be used as a brief screening tool for medication adherence with cigarette smokers seeking treatment. Information obtained with this questionnaire could be used to counsel patients regarding the importance of medication adherence.

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Section: The Medication Adherence Questionnairementioning

confidence: 99%

Factor structure and validity of the Medication Adherence Questionnaire (MAQ) with cigarette smokers trying to quit

Toll

McKee

Martin

et al. 2007

CNTR

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“…In the present study using a valid qualitative methodology, a total of 12 conditions or barriers to the use of inhalers, which have been related to the control of respiratory diseases in previous studies, (29)(30)(31)(32) were formed by a consensus of a large group of health care professionals and thereupon, in a large sample of patients. Questionnaires available up to date (8)(9)(10)29) have also assessed some conditions included in the TAI, although in a partial way including forgetfulness, lack of need of inhaler use, side effects-related concern and availability of the inhaler.…”

Section: Discussionmentioning

confidence: 99%

“…Questionnaires available up to date (8)(9)(10)29) have also assessed some conditions included in the TAI, although in a partial way including forgetfulness, lack of need of inhaler use, side effects-related concern and availability of the inhaler. However, none of these single barriers has shown predictive validity in the adherence to inhalers.…”

Section: Discussionmentioning

confidence: 99%

Validation of the 'test of the adherence to inhalers' (TAI) for asthma and COPD patients

Gutiérrez-Pereyra

Plaza

Fernández-Rodríguez

et al. 2015

1.11 Clinical Problems - Asthma

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Background: To validate the 'Test of Adherence to Inhalers' (TAI), a 12-item questionnaire designed to assess the adherence to inhalers in patients with COPD or asthma. Methods: A total of 1009 patients with asthma or COPD participated in a cross-sectional multicenter study. Patients with electronic adherence ‡80% were defined as adherents. Construct validity, internal validity, and criterion validity were evaluated. Self-reported adherence was compared with the Morisky-Green questionnaire.Results: Factor analysis study demonstrated two factors, factor 1 was coincident with TAI patient domain (items 1 to 10) and factor 2 with TAI health-care professional domain (items 11 and 12). The Cronbach's alpha was 0.860 and the test-retest reliability 0.883. TAI scores correlated with electronic adherence (q¼0.293, p¼0.01). According to the best cut-off for 10 items (score 50, area under the ROC curve 0.7), 569 (62.5%) patients were classified as nonadherents. The non-adherence behavior pattern was: erratic 527 (57.9%), deliberate 375 (41.2%), and unwitting 242 (26.6%) patients. As compared to Morisky-Green test, TAI showed better psychometric properties. Conclusions: The TAI is a reliable and homogeneous questionnaire to identify easily non-adherence and to classify from a clinical perspective the barriers related to the use of inhalers in asthma and COPD.

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“…The first measure was the Medication Adherence Scale (MAS). 28 This selfreport scale was developed by Brooks and associates in their work with asthma patients. They combined 2 adherence scales to construct the MAS, demonstrated its reliability and validity through their work, and recommended its use for measuring adherence in other settings.…”

Section: Instrumentsmentioning

confidence: 99%

Antidepressant Medication Adherence

Tamburrino¹,

Nagel²,

Chahal³

et al. 2009

Prim. Care Companion J. Clin. Psychiatry

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Assessing Adherence to Asthma Medication and Inhaler Regimens: A Psychometric Analysis of Adult Self-Report Scales

Cited by 106 publications

References 9 publications

Factor structure and validity of the Medication Adherence Questionnaire (MAQ) with cigarette smokers trying to quit

Factor structure and validity of the Medication Adherence Questionnaire (MAQ) with cigarette smokers trying to quit

Validation of the 'test of the adherence to inhalers' (TAI) for asthma and COPD patients

Antidepressant Medication Adherence

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