• Reza Alaghehbandan, Kayla D Collins, Leigh Anne Newhook, and Don MacDonald.
• Research and Development Division, Newfoundland and Labrador Centre for Health Information, St. John's, NL, Canada. rezaa@nlchi.nl.ca
• Diabetes Res. Clin. Pract. 2006 Oct 1;74(1):82-9.

AbstractThe aim of this study was to calculate incidence and hospitalization rates of childhood type 1 diabetes mellitus (T1DM) in Newfoundland and Labrador, and to assess hospitalization trends and associated factors. Data for all patients aged 0-19 years with a diagnosis of T1DM was obtained from the clinical database management system (CDMS) for a 7-year period between April 1, 1995 and March 31, 2002. Incidence was calculated for the 0-7 years age group. A total of 894 T1DM hospital separations among children aged 0-19 years were identified, representing a hospitalization rate of 88.6 per 100,000 person-years (P-Y). The CDMS identified 518 incidences of hospitalization (51.2 per 100,000 P-Y). The overall hospitalization rate increased over the study period (P((2))=0.065). Hospitalization rates for males and females were 77.3 and 100.2 per 100,000 P-Y, respectively (P((2))=0.00011). Of the 894 hospitalization separations, 216 hospitalizations were for diabetic ketoacidosis (DKA) (21.4 per 100,000 P-Y). Female gender and older age were found to be predictive factors of DKA. The incidence rate of T1DM among children aged 0-7 years was 19.0 per 100,000 P-Y. Newfoundland and Labrador has one of the highest incidence rates of T1DM in the world. Hospitalization rates for DKA and non-DKA increased slightly over the study period. Age and sex patterns suggest that DKA is a particular challenge among adolescent girls. Preventive strategies are needed, particularly in areas of the province with the highest rates.

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