Large European study suggests men with type 1 diabetes are better at blood sugar control than women

September 23, 2013

Men with type 1 diabetes appear to be better at blood sugar control than women, but there is no significant difference in blood sugar control between boys and girls. These are the findings of new research presented at this week's annual meeting of the European Association for the Study of Diabetes (EASD) in Barcelona, Spain. The research is by Professor Sarah Wild, University of Edinburgh, UK, and colleagues from the International quality of care for type 1 diabetes group.

Since there are limited data showing differences in control in type 1 diabetes between the sexes, Wild and colleagues investigated this issue using a large international analysing patients from 12 countries (Austria, Denmark, Germany, Italy, Latvia, New Zealand, Norway, Scotland, Slovenia, Sweden, Ukraine, United States), representing a total of 142,260 child and .

The researchers analysed blood sugar control over the previous 12 to 24 months derived from both population-based registers and clinic databases. The comparison was the proportions of people with HbA1c ?7.5% (58mmol/mol) for females compared to males, adjusted for age and duration of diabetes within three age strata that broadly represent paediatric (<15 years), young adult (15-29 years) and adult populations (?30 years).

The team found that proportions of people with HbA1c ?7.5% (and therefore worse blood sugar control) ranged from 64.4% in boys <15 years of age to 74.0% in women of 15-29 years old. In the youngest age group there was no statistically significant difference between boys and girls. In the two older age categories, women aged 15-29 years were 8% more likely to miss the target and have HbA1c ?7.5% then men of the same age, and women aged 30 years and over were 6% more likely to miss the target than men in the same age group.

Dr Wild concludes: "In this analysis of data from several countries males were more likely to have a better profile than females. Further work is required to investigate explanations for this finding."

She adds: "One explanation could be that women tend to have lower haemoglobin levels than men which could explain the higher HbA1c levels, but further research is required to confirm this."

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