Ling Zhu1, Li Chang Ang2, Wee Boon Tan2, Xiaohui Xin2, Yong Mong Bee3, Su-Yen Goh3, Ming Ming Teh3. 1. Department of Endocrinology, Singapore General Hospital, 20 College Road, Singapore 169856, Singapore. 2. Academic Clinical Program, Division of Medicine, Singapore General Hospital, Singapore. 3. Department of Endocrinology, Singapore General Hospital, Singapore.
Abstract
BACKGROUND: Impaired awareness of hypoglycaemia (IAH) predisposes affected patients to severe hypoglycaemia. There are few data on prevalence of IAH in adults with insulin-treated type 2 diabetes in Asia. We aim to ascertain the prevalence of IAH among insulin-treated patients with type 2 diabetes in an outpatient clinic in a tertiary care centre in Singapore. METHODS: A total of 374 patients with insulin-treated type 2 diabetes attending the outpatient diabetes clinic in a tertiary referral centre in Singapore were recruited over a 4-month period. Participants completed a questionnaire to document baseline characteristics and assess their hypoglycaemia awareness status, using a combination of the Clarke, Gold and Pedersen-Bjergaard methods. RESULTS: Using the Clarke, Gold and Pedersen-Bjergaard methods, prevalence of IAH in our cohort was 9.6%, 13.4% and 33.2% respectively. Overall, 7.2% of participants suffered from severe hypoglycaemia in the preceding year. The IAH group had more episodes of severe hypoglycaemia across all three methods, compared with the normal awareness group (p < 0.01). There were no significant differences in mean HbA1c, duration of diabetes and insulin treatment between the IAH and normal awareness groups. CONCLUSIONS: IAH is prevalent in adults with insulin-treated type 2 diabetes in Asia, and is associated with significantly increased risk of severe hypoglycaemia.
BACKGROUND:Impaired awareness of hypoglycaemia (IAH) predisposes affected patients to severe hypoglycaemia. There are few data on prevalence of IAH in adults with insulin-treated type 2 diabetes in Asia. We aim to ascertain the prevalence of IAH among insulin-treated patients with type 2 diabetes in an outpatient clinic in a tertiary care centre in Singapore. METHODS: A total of 374 patients with insulin-treated type 2 diabetes attending the outpatientdiabetes clinic in a tertiary referral centre in Singapore were recruited over a 4-month period. Participants completed a questionnaire to document baseline characteristics and assess their hypoglycaemia awareness status, using a combination of the Clarke, Gold and Pedersen-Bjergaard methods. RESULTS: Using the Clarke, Gold and Pedersen-Bjergaard methods, prevalence of IAH in our cohort was 9.6%, 13.4% and 33.2% respectively. Overall, 7.2% of participants suffered from severe hypoglycaemia in the preceding year. The IAH group had more episodes of severe hypoglycaemia across all three methods, compared with the normal awareness group (p < 0.01). There were no significant differences in mean HbA1c, duration of diabetes and insulin treatment between the IAH and normal awareness groups. CONCLUSIONS: IAH is prevalent in adults with insulin-treated type 2 diabetes in Asia, and is associated with significantly increased risk of severe hypoglycaemia.
Entities:
Keywords:
Diabetes mellitus type 2; hypoglycaemia; impaired awareness
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