TY - JOUR 
A1 - Rodríguez de Castro, Carmen
AU - Vigil Medina, Luis
AU - Vargas, Borja
AU - García Delgado, Emilio
AU - García Carretero, Rafael
AU - Ruiz Galiana, Julián
AU - Varela, Manuel
T1 - Glucose time series complexity as a predictor of type 2 diabetes
Y1 - 2017
SN - 1520-7560
UR - http://hdl.handle.net/11268/8716
AB - Background
Complexity analysis of glucose profile may provide valuable information about the gluco‐regulatory system. We hypothesized that a complexity metric (detrended fluctuation analysis, DFA) may have a prognostic value for the development of type 2 diabetes in patients at risk.

Methods
A total of 206 patients with any of the following risk factors (1) essential hypertension, (2) obesity or (3) a first‐degree relative with a diagnosis of diabetes were included in a survival analysis study for a diagnosis of new onset type 2 diabetes. At inclusion, a glucometry by means of a Continuous Glucose Monitoring System was performed, and DFA was calculated for a 24‐h glucose time series. Patients were then followed up every 6 months, controlling for the development of diabetes.

Results
In a median follow‐up of 18 months, there were 18 new cases of diabetes (58.5 cases/1000 patient‐years). DFA was a significant predictor for the development of diabetes, with ten events in the highest quartile versus one in the lowest (log‐rank test chi2 = 9, df = 1, p = 0.003), even after adjusting for other relevant clinical and biochemical variables. In a Cox model, the risk of diabetes development increased 2.8 times for every 0.1 DFA units. In a multivariate analysis, only fasting glucose, HbA1c and DFA emerged as significant factors.

Conclusions
Detrended fluctuation analysis significantly performed as a harbinger of type 2 diabetes development in a high‐risk population. Complexity analysis may help in targeting patients who could be candidates for intensified treatment.
KW - Diabetes
KW - Tecnología médica
KW - Sistema cardiovascular
KW - Enfermedad
KW - Tecnología médica
LA - eng
ER -