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IQ is an independent predictor of glycated haemoglobin level in young and middle‐aged adults with intellectual disability
Author(s) -
Yano T.,
Miki T.,
Itoh T.,
Ohnishi H.,
Asari M.,
Chihiro S.,
Yamamoto A.,
Aotsuka K.,
Kawakami N.,
Ichikawa J.,
Hirota Y.,
Miura T.
Publication year - 2015
Publication title -
diabetic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.474
H-Index - 145
eISSN - 1464-5491
pISSN - 0742-3071
DOI - 10.1111/dme.12547
Subject(s) - intellectual disability , medicine , intelligence quotient , borderline intellectual functioning , intellectual ability , blood pressure , diabetes mellitus , cognition , pediatrics , psychiatry , endocrinology
Aims Here we examined whether intellectual disability is independently associated with hyperglycaemia. Methods We recruited 233 consecutive young and middle‐aged adults with intellectual disability. After exclusion of subjects on medication for metabolic diseases or with severe intellectual disability ( IQ < 35), 121 subjects were divided by IQ into a group with moderate intellectual disability (35≤ IQ ≤50), a mild intellectual disability group (51≤ IQ ≤70) and a borderline group ( IQ > 70). Results HbA 1c level was higher in subjects with moderate intellectual disability (42 ± 9 mmol/mol; 6.0 ± 0.8%) than those in the borderline group (36 ± 4 mmol/mol; 5.5 ± 0.3%) and mild intellectual disability group (37 ± 5 mmol/mol; 5.5 ± 0.5%) groups. HbA 1c level was correlated with age, BMI , blood pressure, serum triglycerides and IQ in simple linear regression analysis. Multiple regression analysis indicated that IQ , age, BMI and diastolic blood pressure were independent explanatory factors of HbA 1c level. Conclusions An unfavourable effect of intellectual disability on lifestyle and untoward effect of hyperglycaemia on cognitive function may underlie the association of low IQ with hyperglycaemia.