Luis Forga Llenas1, María José Goñi Iriarte2, Koldo Cambra Contin3, Berta Ibáñez Beroiz3, María Chueca Guendulain4, Sara Berrade Zubiri4. 1. Endocrinology Department, Complejo Hospitalario de Navarra, 31008 Pamplona, Navarra, Spain. Electronic address: lforgall@cfnavarra.es. 2. Endocrinology Department, Complejo Hospitalario de Navarra, 31008 Pamplona, Navarra, Spain. 3. Navarrabiomed, Fundación Miguel Servet, Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), 31008 Pamplona, Navarra, Spain. 4. Paediatric Endocrinology, Complejo Hospitalario de Navarra, 31008 Pamplona, Navarra, Spain.
Abstract
OBJECTIVE: To determine trends in the incidence of type 1 diabetes in Navarre (Spain) between 1975 and 2012 by age and sex. PATIENTS AND METHODS: The study population comprised residents of Navarre under 15 years of age. A Poisson regression model was fitted to analyze changes in the incidence over time, adjusted by year of diagnosis, age group and sex. RESULTS: A total of 494 patients were registered, representing an adjusted incidence rate of 13.2/100,000 person-years. The annual relative increase in the incidence rate was 3.7%. The highest incidence was found in the group aged 10-14 years. The incidence among boys aged 10-14 tended to be higher than that in girls of the same age. CONCLUSIONS: Since the year 2000, the incidence of type 1 diabetes among persons younger than 15 years in Navarre has been very high and has quadrupled over the last four decades.
OBJECTIVE: To determine trends in the incidence of type 1 diabetes in Navarre (Spain) between 1975 and 2012 by age and sex. PATIENTS AND METHODS: The study population comprised residents of Navarre under 15 years of age. A Poisson regression model was fitted to analyze changes in the incidence over time, adjusted by year of diagnosis, age group and sex. RESULTS: A total of 494 patients were registered, representing an adjusted incidence rate of 13.2/100,000 person-years. The annual relative increase in the incidence rate was 3.7%. The highest incidence was found in the group aged 10-14 years. The incidence among boys aged 10-14 tended to be higher than that in girls of the same age. CONCLUSIONS: Since the year 2000, the incidence of type 1 diabetes among persons younger than 15 years in Navarre has been very high and has quadrupled over the last four decades.