ESPE2014 Poster Category 2 Fat Metabolism & Obesity (2) (23 abstracts)
Mehta Childrens Hospital, Chennai, India
Background: BMI to screen children for cardiometabolic risk has numerous drawbacks. Hypertriglyceridemic-waist (HW) phenotype is recognized as an effective screening tool to identify adults but role in children is not known.
Objective and hypotheses: To evaluate HW-phenotype as an alternative for BMI in recognizing children (518 years) at risk for cardiometabolic risk factors.
Method: Retrospective review of case records of children evaluated for cardiometabolic risks in the Paediatric Endocrine Clinic of a developing country. Children with waist circumference ≥90th percentile and serum triglyceride levels >100 mg/dl considered to have abnormal HW-phenotype.
Results: Records of 40 children (mean age 10.0±3.3 years; 27 males; mean BMISDS 2.8±0.6) reviewed. 87.5, 50, and 40% subjects had abnormal waist, elevated triglycerides, and abnormal HW-phenotype respectively. Children with abnormal HW-phenotype had higher total cholesterol (166.7±38.1 vs 161.2±33.4 mg/dl; P<0.05), higher LDL levels (105.7±38.1 vs 102.9±30.4 mg/dl; P<0.05), and lower HDL levels (41.3±17.1 vs 45.0±14.1 mg/dl; P>0.05). Low HDL was more frequently observed in children with abnormal HW-phenotype (46.7 vs 30.8%; P<0.05). Comparison of BMI, waist circumference alone, and HW-phenotype revealed that BMI has highest sensitivity and HW phenotype has highest specificity to recognize cardiometabolic risk factors (Table 1).
BMISDS >+2 | HW phenotype | WC >90th percentile | ||||
Sen (%) | Sp (%) | Sen (%) | Sp (%) | Sen (%) | Sp (%) | |
TCa >170 mg/dl | 92.3 | 13.4 | 37.5 | 58.3 | 75 | 4.1 |
LDLb >110 mg/dl | 91.6 | 13.0 | 40 | 62.5 | 73.3 | 4.1 |
HDLc <35 mg/dl | 80 | 8 | 58.3 | 70.3 | 83.3 | 11.1 |
Insulin >15 mIU/ml | 100 | 5 | 50 | 64 | 88.8 | 25 |
Blood sugar >110 mg/dl | 83.3 | 9.5 | 42.8 | 68.1 | 79 | 12.3 |
Conclusion: Though HW phenotype is more specific, BMI remains the gold standard to screen children for metabolic risk factors.