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The relative effect of self-management practices on glycaemic control in type 2 diabetic patients in Mexico

Alba Garcia

Instituto Mexicano del Seguro Social (IMSS), Unidad de Investigacio Social, Epidemiologica y en Servios de Salud, CMNO Belisario Dominguez 1000 Colonia Independencia, Guadalajara, Jalisco, Mexico CP 44340, Hospital Civil of Guadalajara, J.I., Menchaca, Guadalajara, Jalisco, Mexico

Florence J. Dallo

University of Michigan, Institute for Social Research, 426 Thompson St, Ann Arbor, MI 48104-2321, USA

Ana L. Salcedo Rocha

Instituto Mexicano del Seguro Social (IMSS), Unidad de Investigacio Social, Epidemiologica y en Servios de Salud, CMNO Belisario Dominguez 1000 Colonia Independencia, Guadalajara, Jalisco, Mexico CP 44340, Hospital Civil of Guadalajara, J.I., Menchaca, Guadalajara, Jalisco, Mexico

Cecilia Colunga Rodriguez

Instituto Mexicano del Seguro Social (IMSS), Unidad de Investigacio Social, Epidemiologica y en Servios de Salud, CMNO Belisario Dominguez 1000 Colonia Independencia, Guadalajara, Jalisco, Mexico CP 44340

Noe Perez

University of Texas Medical Branch, Department of Preventive Medicine and Community Health, Galveston, TX 77555-1153, USA

Roberta D. Baer

University of South Florida, Department of Anthropology, Tampa, FL 33606, USA

Susan C. Weller

University of Texas Medical Branch, Department of Preventive Medicine and Community Health, Galveston, TX 77555-1153, USA, sweller{at}utmb.edu

Objective: In this study, we examined the relative impact of self-management activities on glycaemic control in a population at high risk for developing complications.

Methods: Patients diagnosed with diabetes mellitus of at least 1 year in duration at 30 years of age or older were sampled from the Instituto de Mexico Seguro Social (IMSS) Family Medicine Clinics in Guadalajara, Mexico (n=800). Demographic, clinical and health behaviour variables were used to predict good/poor glycaemic control, as measured by haemoglobin A1c (A1C).

Results: Most (72.24%) patients had poor control (A1C7.0). Hyperglycaemia was significantly associated with factors not under patient control, such as having diabetes for a longer time [odds ratio (OR)=2.40, 95% confidence interval (CI) 1.39, 4.14], having a first-degree relative with diabetes (OR=1.52; 95% CI 1.06, 2.19), and being prescribed anti-diabetic medications, e.g. insulin (OR=7.88, 95% CI 2.42, 25.63). After controlling for these variables, the only self-management variable that reduced the likelihood of hyperglycaemia was following a special diet (OR=0.49; 95% CI 0.32, 0.76). Furthermore, depression had an important effect on self-management, as those with lower levels of depressive symptoms were more likely to follow a diet and exercise.

Discussion: While patients in this population have little control over many factors associated with glycaemic control, an important exception is diet. However, because of the adverse effect of depression on dieting, both depression management and dietary education are important for this population.

Key Words: Diabetes self-management • Glycaemic control • Mexico • Type 2 diabetes mellitus

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