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Quality of Life Research

Gepubliceerd in:

01-09-2009

Reliability and validity of an instrument for assessing patients’ perceptions about medications for diabetes: the PAM-D

Auteurs: Patrick O. Monahan, Kathleen A. Lane, Risa P. Hayes, Colleen A. McHorney, David G. Marrero

Gepubliceerd in: Quality of Life Research | Uitgave 7/2009

Abstract

Purpose

To evaluate the reliability and validity of the Perceptions About Medications for Diabetes (PAM-D) instrument.

Methods

The item pool was generated from a literature review and 18 focus groups of Type 2 diabetes patients. Surveys were mailed to 1,000 low-income diabetes patients; 362 were returned; 65 of 100 re-test surveys were returned.

Results

This paper uses data from 343 Type 2 respondents. Mean age and age diagnosed were 59 and 48, respectively; 72% female; 52% African American; 51% were taking oral antihyperglycemic agents [OHA] monotherapy, 18% insulin monotherapy, and 28% insulin plus OHA. The initial 66 items were reduced to 37 across nine scales: scheduling flexibility, portability convenience, regimen inconvenience, medication effectiveness, difficulty remembering medications, gastrointestinal, hypoglycemia-related, and weight/edema physical side effects, and emotional side effects. Scale reliabilities ranged from 0.71 to 0.92 (coefficient alpha) and from 0.54 to 0.83 (test–retest coefficient, 37–81-day interval); factor loadings ranged from 0.35 to 0.86 (median, 0.67); significant scale differences across medication groups (insulin, OHA, insulin plus OHA) were consistent with a priori hypotheses.

Conclusions

The PAM-D has substantial reliability and validity in a low-income, inner-city population of Type 2 diabetes patients and may be valuable for understanding multidimensional perceptions driving patients’ treatment preferences.

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Titel: Reliability and validity of an instrument for assessing patients’ perceptions about medications for diabetes: the PAM-D
Auteurs: Patrick O. Monahan
Kathleen A. Lane
Risa P. Hayes
Colleen A. McHorney
David G. Marrero
Publicatiedatum: 01-09-2009
Uitgeverij: Springer Netherlands
Gepubliceerd in: Quality of Life Research / Uitgave 7/2009
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-009-9510-2

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Abstract

Purpose

Methods

Results

Conclusions

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