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Effects of continuous glucose monitor-recorded nocturnal hypoglycaemia on quality of life and mood during daily life in type 1 diabetes

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AIMS/HYPOTHESIS: The aim of this work was to assess the effect of spontaneous nocturnal hypoglycaemia on quality of life and mood during subsequent days in type 1 diabetes.

METHODS: A total of 153 people with type 1 diabetes participated in 6 days of blinded continuous glucose monitoring while documenting hypoglycaemic symptoms, quality of life and mood, daily. Hypoglycaemia was defined by interstitial glucose ≤3.9 mmol/l (IG3.9) and ≤ 3.0 mmol/l (IG3.0) for ≥15 min and was classified as asymptomatic if no hypoglycaemic symptoms were reported.

RESULTS: Self-estimated quality of life assessed by the EQ-5D VAS (but not by the WHO Well-Being Index) was higher the day after asymptomatic (but not after symptomatic) hypoglycaemic nights, as compared with non-hypoglycaemic nights (IG3.9, p = 0.021; IG3.0, p = 0.048). The effect increased with lower glucose nadir and longer duration of nocturnal hypoglycaemia (IG3.9, p = 0.03). The finding was confined to participants with impaired hypoglycaemia awareness. There was no effect of nocturnal hypoglycaemia on mood or self-estimated effectiveness at work the following day.

CONCLUSIONS/INTERPRETATION: Individuals with type 1 diabetes and impaired hypoglycaemia awareness reported higher quality of life on days preceded by nights with asymptomatic (but not symptomatic) hypoglycaemia. The effect was amplified by lower glucose nadir and longer duration of the episodes and may help explain resistance to implementation of interventions to reduce hypoglycaemia in many people with impaired hypoglycaemia awareness.

Original languageEnglish
JournalDiabetologia
Volume64
Issue number4
Pages (from-to)903-913
Number of pages11
ISSN0012-186X
DOIs
Publication statusPublished - Apr 2021

    Research areas

  • Hypoglycaemia, Hypoglycaemia awareness, Impaired awareness, Quality of life, Type 1 diabetes

ID: 61788078