Informational value of percent body fat with body mass index for the risk of abnormal blood glucose: a nationally representative cross-sectional study

ObjectiveTo examine the value of percent body fat (%BF) with body mass index (BMI) to assess the risk of abnormal blood glucose (ABG) among US adults who are normal weight or overweight. We hypothesised that normal-weight population with higher %BF is more likely to have ABG.DesignA cross-sectional...

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Bibliographic Details
Published in:BMJ open 2018-04, Vol.8 (4), p.e019200
Main Authors: Jo, Ara, Mainous III, Arch G
Format: Article
Language:English
Subjects:
Adipose Tissue
Adult
Aged
Blood Glucose
Body fat
Body Mass Index
Cross-Sectional Studies
Diabetes
Diabetes and Endocrinology
Diabetes Mellitus, Type 2
Female
Humans
Male
Massachusetts
Middle Aged
Mortality
Nutrition Surveys
Obesity
Systematic review
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Summary:ObjectiveTo examine the value of percent body fat (%BF) with body mass index (BMI) to assess the risk of abnormal blood glucose (ABG) among US adults who are normal weight or overweight. We hypothesised that normal-weight population with higher %BF is more likely to have ABG.DesignA cross-sectional study.SettingNational Health and Nutrition Examination Survey, 1999–2006, conducted by the National Center for Health Statistics of the Centers for Disease Control and Prevention.ParticipantsParticipants were US adults aged 40 and older who have never been diagnosed with type 2 diabetes by a doctor (unweighted n=6335, weighted n=65 705 694). The study population was classified into four groups: (1) normal weight with normal %BF, (2) normal weight with high %BF, (3) overweight with normal %BF and (4) overweight with high %BF.Main outcome measuresORs for ABG including pre-diabetes and undiagnosed diabetes (HbA1c ≥5.7%, ≥39 mmol/mol).Results64% of population with normal BMI classification had a high %BF. Prevalence of ABG in normal-weight group with high %BF (13.5%) is significantly higher than the overweight group with low %BF (10.5%, P
ISSN:2044-6055
2044-6055
DOI:10.1136/bmjopen-2017-019200