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Accumulation of severe hypoglycemia at weekends and in warm seasons in patients with type 1 diabetes but not with type 2 diabetes



Accumulation of severe hypoglycemia at weekends and in warm seasons in patients with type 1 diabetes but not with type 2 diabetes



Journal of Diabetes and its Complications 30(7): 1308-1314



Label="AIMS">To determine the influence of daytime, weekdays and seasons on the frequency of severe hypoglycemia (SH) in a German population.Label="METHODS">Prospective population-based observational study capturing all episodes of SH between 2007 and 2014 in the Lippe-Detmold area. SH was defined as a symptomatic event requiring treatment with intravenous glucose or administration of glucagon and being confirmed by a blood glucose measurement of <2.8mmol/l.Label="RESULTS">A total of 1080 episodes of SH in 747 patients were registered. 37.5% of cases (405/1080) were related to T1DM, 51.9% (561/1080) to T2DM, 3.2% (35/1080) to pancreatic diabetes and 7.3% (79/1080) to non-diabetic individuals. In cases with T1DM we observed a significantly higher event rate of SH at weekends versus the rest of the week: 2.87 events/weekend-hour versus 2.15 events/weekday-hour (p=0.004), especially on Saturdays. We found significantly increased incidences of SH in spring (31.2%) and summer (26.7%) versus autumn (20.3%) and winter (21.8%). There were no corresponding significant seasonal variations of HbA1c and insulin doses. The seasonal distribution of SH in subjects with T2DM was balanced with no peak incidence at weekends.Label="CONCLUSIONS">For the risk of SH, time factors appear to contribute more substantially in individuals with T1DM than in patients with T2DM. The enhanced frequency of SH in patients with T1DM at weekends and in warm seasons was probably caused by short-term changes in behavior. Intensification of diabetes care and education with better adjustment of insulin doses in these susceptible periods could be an appropriate approach to prevent SH.

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Accession: 057120795

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PMID: 27311787

DOI: 10.1016/j.jdiacomp.2016.05.026


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