Patient Interpretation of Neuropathy (PIN) questionnaire: An instrument for assessment of cognitive and emotional factors associated with foot self-care

Loretta Vileikyte, Jeffrey S. Gonzalez, Howard Leventhal, Mark F. Peyrot, Richard R. Rubin, Adam Garrow, Jan S. Ulbrecht, Peter R. Cavanagh, Andrew J.M. Boulton

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

OBJECTIVE - Using the common-sense model of illness behavior, we developed and validated a self-report instrument for assessment of patients' cognitive and emotional representations of diabetic peripheral neuropathy (DPN) influencing foot self-care. RESEARCH DESIGN AND METHODS - The Patient Interpretation of Neuropathy (PIN) questionnaire, generated from discussions with clinicians and interviews with patients with DPN, was administered to patients with DPN attending U.K. (n = 325) and U.S. (n = 170) diabetes centers. Psychometric tests of the PIN questionnaire comprised factor analysis, internal consistency, and test-retest reliability. Partial correlations and multivariate regressions established construct and criterion-related validity. The associations of PIN scales to past foot ulceration and foot self-care behaviors were compared with those using a generic measure of illness perception and emotion, the Revised Illness Perception Questionnaire (IPQ-R), which was adapted to neuropathy. RESULTS - Factor analysis of the PIN questionnaire produced 11 scales, which explained 69% of item variance. Nine factors measured patients' common-sense beliefs about DPN and their levels of understanding of DPN-related medical information. Two factors assessed the emotions of worry about potential consequences and anger at practitioners. Most scales demonstrated adequate internal (Cronbach's α = 0.62-0.90) and test-retest reliability (Pearson's r = 0.51-0.64). Partial correlations between the PIN and IPQ-R scales in corresponding domains were significant but modest (rp = 0.15-0.26). Finally, PIN scales showed significant associations with past foot ulceration and foot self-care behaviors, thereby confirming criterion validity. CONCLUSIONS - The 39-item PIN questionnaire is a reliable and valid measure of patients' cognitive and emotional representations of neuropathy affecting foot self-care.

Original languageEnglish (US)
Pages (from-to)2617-2624
Number of pages8
JournalDiabetes care
Volume29
Issue number12
DOIs
StatePublished - Dec 2006

All Science Journal Classification (ASJC) codes

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Advanced and Specialized Nursing

Fingerprint Dive into the research topics of 'Patient Interpretation of Neuropathy (PIN) questionnaire: An instrument for assessment of cognitive and emotional factors associated with foot self-care'. Together they form a unique fingerprint.

Cite this