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Measuring quality of life in low-income, Spanish-speaking Puerto Ricans with type 2 diabetes residing in the mainland U.S.

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Abstract

Purpose

This study assessed the psychometric properties of the Audit of Diabetes-Dependent Quality of Life (ADDQoL) modified for low-income, low-education, Spanish-speaking Puerto Ricans with type 2 diabetes residing in the northeastern United States.

Methods

Cross-sectional data from 226 patients were analyzed. Scale modifications included simplification of instructions, question wording and response format, and oral administration. Reliability was assessed with Cronbach’s alpha coefficient and internal structure by exploratory factor analysis. Criterion validity was assessed using correlation analysis and linear and logistic regression models assessing the association of the ADDQoL with standardized physical health status, mental health status, depression, and comorbidity indices.

Results

Two ADDQoL items were dropped. The modified scale had excellent internal consistency and supported the original scale factor structure. Criterion validity results supported the validity of this measure.

Conclusions

The modified ADDQoL showed psychometric properties that support its use in low-income, Spanish-speaking Puerto Ricans with type 2 diabetes who reside in mainland U.S.

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Acknowledgments

This research was supported by the National Institute of Diabetes and Digestive and Kidney Diseases grant No. 5 R18 DK065985 to Dr. Milagros Rosal. We thank Dr. Clare Bradley, Professor of Health Psychology and Director of Health Psychology Research Ltd at the University of London for her thoughtful review of the manuscript. The ADDQoL can be obtained via the following website: www.healthpsychologyresearch.com.

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Authors and Affiliations

  1. Division of Preventive and Behavioral Medicine, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA, 01655, USA

    Stephenie C. Lemon & Milagros C. Rosal

  2. Director of Behavioral Medicine Research, Baystate Medical Center, Springfield, MA, USA

    Garry Welch

  3. Department of Psychiatry, Tufts University School of Medicine, Boston, MA, USA

    Garry Welch

Authors
  1. Stephenie C. Lemon
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  2. Milagros C. Rosal
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  3. Garry Welch
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Correspondence to Stephenie C. Lemon.

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Lemon, S.C., Rosal, M.C. & Welch, G. Measuring quality of life in low-income, Spanish-speaking Puerto Ricans with type 2 diabetes residing in the mainland U.S.. Qual Life Res 20, 1507–1511 (2011). https://doi.org/10.1007/s11136-011-9871-1

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