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Instituto Nacional de Salud Pública

2006, Number 3

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salud publica mex 2006; 48 (3)

Adaptation and validation of quality of life instrument Diabetes 39 for Mexican patients with type 2 diabetes mellitus 200

López-Carmona JM, Rodríguez-Moctezuma R

Language: Spanish
References: 51
Page: 200-211
PDF size: 121.53 Kb.


ABSTRACT

Objective. To adapt and validate the Spanish language version of the Diabetes 39 instrument, which measures quality of life, for Mexican patients with type 2 diabetes mellitus (DM-2). Materials and Methods: The Spanish language version of the instrument was adapted to make it more comprehensible to Mexican patients. In a cross-sectional survey, the instrument was administered on two different days to 260 patients with type DM-2. Glycated hemoglobin (HbA1C), total cholesterol, triglycerides, blood pressure, body mass index and waist/hip ratio were measured. Information about age, sex, time since diagnosis of diabetes, diabetes related complications and comorbidity was obtained. Results. A total of 249 subjects completed the study, 62.7% of which were women. Cronbach’s α coefficient was ≥0.80 for the domains and 0.95 for the total score. The test-retest consistency for the total score was r= 0.82, p= 0.01. The median of the total score was 29 (on a scale of 0-100), which was considered the cutoff value for defining “better” (‹29) and “worse” (≥29) quality of life. A worse quality of life was associated with diabetes related complications ≥1 (OR= 1.73; IC95% 1.05-3.06); total cholesterol ›240 mg/dL (OR= 4.43; IC95% 1.23-16.26); comorbidity ≥2 diseases (OR= 2.36; IC95% 1.31-4.28); diabetes longer than 10 years (OR= 2.19; IC95% 1.2-3.78), and HbA1C ›8% (OR= 1.81; IC95% 1.09-2.99). The last three were identified as predictor variables for worse quality of life by logistic regression (p‹ 0.05). Conclusions. The adapted Spanish language version of Diabetes 39 is a reliable and valid instrument for measuring the quality of life of Mexican patients with DM-2.


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  7. Guyatt GH, Veldhuyzen Van Zanten SJ, Feeny DH, Patrick DL. Measuring quality of life in clinical trials: a taxonomy and review. CMAJ 1989;140:1441-1448.

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  10. Anderson RM, Fitzgerald JT, Kimberlydawn W, Davis WK, Hiss RG. A comparison of global versus disease-specific quality of life measures in patients with NIDDM. Diabetes Care 1997;20:299-305.

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  15. DCCT Research Group: Reliability and validity of a diabetes quality of life measure for the Diabetes Control and Complications Trial (DCCT). Diabetes Care 1988;11:725-732.

  16. Boyer JG, Earp JAL. The development of an instrument for assessing the quality of life of people with diabetes. Med Care 1997;35:440-453.

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  18. Shen W, Kotsanos JG, Huster W, Mathias S, Andrejasich CM, Patrick DL. Development and validation of the Diabetes Quality of Life Clinical Trial Questionnaire. Med Care 1999;37 suppl 4:AS45-AS66.

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  27. Katz S. The science of quality of life. J Chronic Dis 1987;40:459-463.

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  30. Testa MA, Simonson DC. Current concepts: assessment of quality-of-life outcomes. N Engl J Med 1996;334(13):835-840.

  31. Muldoon MF, Barger SD, Flory JD, Manuck SB. What are quality of life measurements measuring? BMJ 1998;316(7130):542-545.

  32. Testa MA, Simonson DC, Turner RR. Valuing quality of life and improvements in glycemic control in people with type 2 diabetes. Diabetes Care 1998;21 suppl 3:C44-C52.

  33. Guyatt GH, Veldhuyzen Van Zanten SJ, Feeny DH, Patrick DL. Measuring quality of life in clinical trials: a taxonomy and review. CMAJ 1989;140:1441-1448.

  34. Wienberger M, Kirkman S, Samsa G, Cowper PA, Shortliffe EA, Simel DL, et al. The relationship between glycemic control and health-related quality of life in patients with non insulin dependent diabetes mellitus. Med Care 1994;32:1173-1181.

  35. Jacobson AM, de Groot M, Samson JA. The evaluation of two measures of quality of life in patients with type I and type II diabetes. Diabetes Care 1994;17:267-274.

  36. Anderson RM, Fitzgerald JT, Kimberlydawn W, Davis WK, Hiss RG. A comparison of global versus disease-specific quality of life measures in patients with NIDDM. Diabetes Care 1997;20:299-305.

  37. Glasgow RE, Ruggiero L, Eakin EG, Dryfoos J, Chobanian L. Quality of life and associated characteristics in a large national sample of adults with diabetes. Diabetes Care 1997;20:562-567.

  38. Bergner M, Bobbit RA, Carter WB, Gilson BS. The sickness impact profile. Development and final revision of a health status measure. Med Care 1981;19:787-805.

  39. García-Peña MC, Reyes-Morales H, Garduño-Espinosa J, Fajardo-Gutiérrez A, Martínez-García C. La calidad de vida en el paciente diabético tipo II y factores relacionados. Rev Med IMSS 1995;33:293-298.

  40. DCCT Research Group: Reliability and validity of a diabetes quality of life measure for the Diabetes Control and Complications Trial (DCCT). Diabetes Care 1988;11:725-732.

  41. Boyer JG, Earp JAL. The development of an instrument for assessing the quality of life of people with diabetes. Med Care 1997;35:440-453.

  42. Bott U, Muhlhauser I, Overmann H, Berger M. Validation of a Diabetes-Specific-Quality of Life Scale for patients with type 1 diabetes. Diabetes Care 1998;21:757-769.

  43. Shen W, Kotsanos JG, Huster W, Mathias S, Andrejasich CM, Patrick DL. Development and validation of the Diabetes Quality of Life Clinical Trial Questionnaire. Med Care 1999;37 suppl 4:AS45-AS66.

  44. Garrat AM, Schmidt L, Fitzpatrick R. Patient-assessed health outcome measures for diabetes: a structured review. Diabet Med 2002;19:1-11.

  45. Watkins K, Connel CM. Measurement of health-related QOL in diabetes mellitus. Pharmacoeconomics 2004;22(17):1109-1126.

  46. Obesity: preventing and managing the global epidemic. Report of a WHO consultation on obesity. World Health Organ Tech Rep Ser 2000;894:I-XII, 1-253.

  47. Norma Oficial Mexicana NOM-015-SSA2-1994, para la prevención, tratamiento y control de la diabetes mellitus. México: Secretaría de Salud, 2000.

  48. Streiner DL, Norman GR. Health measurement scales. A practical guide to their development and use. 2a. ed. Nueva York: Oxford University Press, 1995.

  49. Penson DF, Latini DM, Lubeck DP, Wallace KL, Henning JM, Lue TF. Do impotent men with diabetes have more severe erectile dysfunction and worse quality of life than the general population of impotent patients? Diabetes Care 2003;26:1093-1099.

  50. U.K. Prospective Diabetes Study Group. Quality of life in type 2 diabetic patients is affected by complications but not by intensive policies to improve blood glucose or blood pressure control (UKPDS 37). Diabetes Care 1999;22:1125-1136.

  51. Mata CM, Roset GM, Badia LX, Antonanzas VF, Ragel AJ. Impacto de la diabetes mellitus tipo 2 en la calidad de vida de pacientes tratados en las consultas de atención primaria en España. Aten Primaria 2003;31:493-499.




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