Incidence of Type 2 Diabetes in the di@Bet.es Study
Incidence of Type 2 Diabetes in the di@Bet.es Study
Our aim was to determine the incidence of type 2 diabetes mellitus in a nation-wide
 population based cohort from Spain (di@bet.es study). The target was the Spanish population.
 The sample consisted of 5072 people older than 18 years, in 100 clusters (health centres
 randomly selected from all over Spain). The following variables were recorded:
 Socio-demographic and clinical data, survey on habits (physical activity and frequency of
 selected food consumption) and a physical examination was made (weight, height, waist, hip,
 blood pressure). A fasting blood draw and an oral glucose tolerance test were performed.
 Determinations of serum glucose were made. In the follow-up the same variables were collected
 and HbA1c was determined. A total of 2408 subjects participated in the follow-up (7.5±0.6
 years, 39.7% men). In total, 154 people developed diabetes (6.4% cumulative incidence in the
 7.5 years of follow-up). The incidence of total diabetes adjusted for the structure of age
 and sex of the Spanish population was 11.6 cases/1000 person-years (IC95%=11.1-12.1). The
 incidence of known diabetes was 3.7 cases/1000 person-years (IC95%=2.8-4.6) and the incidence
 of unknown diabetes was 7.9 cases/1000 person-years (IC95%=5.3-8.1). The main risk factors
 for developing diabetes were the presence of prediabetes in cross-sectional study, age, male
 sex, obesity, central obesity, increase in weight, and family history of diabetes. This work
 provides data about population-based incidence rates of diabetes and associated risk factors
 in a nation-wide cohort of Spanish population.
Inclusion Criteria:

 -  General Population

 Exclusion Criteria:

 -  diabetes in cross-sectional study

 -  serious illness that prevents participation

 -  pregnancy

 -  surgery within the previous month

 -  any other disabling situation that prevents participation