Abstract
Introduction
Carotid intima–media thickness (CIMT) serves as an early marker of atherosclerosis. Data on obesity-related risk factors and their association with carotid intima–media thickness among overweight and obese children are lacking.
Objectives
To compare CIMT of overweight and obese children with CIMT of normal BMI children. To compare various anthropometric and metabolic risk factors associated with increased CIMT among overweight and obese children.
Methods
A descriptive study in a paediatric department of a tertiary care hospital including 50 age-matched normal BMI children and 50 overweight and obese children. Anthropometric data, blood pressure, CIMT (by B-mode ultrasonography), fasting blood sugar, fasting Insulin, fasting lipid profile, TSH, and FT4 were collected. HOMA-IR and fasting glucose–insulin ratio (FGIR) were calculated for insulin resistance. Cutoff for high CIMT was derived using ROC curve analysis.
Results
Overweight and obese children had higher mean CIMT than normal BMI children (0.5 ± 0.1 mm vs 0.34 ± 0.05 mm, respectively, P < 0.001). ROC analysis revealed 0.45 mm as the cutoff for high CIMT. Among overweight and obese children, 31 children (62%) had high CIMT. Among metabolic risk factors for increased CIMT, only FGIR was observed to be significant. Compared to overweight and obese children with normal CIMT, those with higher CIMT had low FGIR value (5.2 ± 2.2 mm vs 6.9 ± 2.6 mm, respectively, P < 0.05).
Conclusion
Overweight and obese children had significantly higher CIMT than controls. Even among overweight and obese children, those with increased CIMT had low FGIR (implying insulin resistance) compared to those with normal CIMT.
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Authors acknowledge the support and help provided by SRIHER, Chennai, India (CSP-MED/15/AUG/24/11).
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The study “A study on carotid artery intima–media thickness and metabolic risk factors in overweight and obese Indian children” was conducted in agreement with the Institutional Ethical Review Board of Sri Ramachandra Institute of Higher Education and Research, Chennai, India (CSP/17/June/49/2017). This study did not require an informed consent from patients.
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Sajja, V., Jeevarathnam, D., James, S. et al. A study on carotid artery intima–media thickness and metabolic risk factors in overweight and obese Indian children. Diabetol Int 11, 142–149 (2020). https://doi.org/10.1007/s13340-019-00417-6
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DOI: https://doi.org/10.1007/s13340-019-00417-6