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Changing relationships of obesity and dyslipidemia in Greek children: 1982-2002
Yannis Manios1, Faidon Magkos, George Christakis
1Laboratory of Nutrition and Clinical Dietetics, Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Avenue, 17671 Kallithea, Athens, Greece.
Insights
Childhood obesity is rising, leading to more significant adverse changes in blood lipids like cholesterol and triglycerides in overweight and obese boys compared to normal-weight peers.
Area of Science:
- Pediatric Endocrinology
- Public Health Nutrition
- Cardiovascular Risk Factors
Background:
- Childhood overweight and obesity prevalence has surged globally over recent decades.
- Limited understanding exists regarding the impact of increased adiposity on blood lipid profiles in children.
- This study investigates the effects of adiposity on anthropometric and plasma lipid trends in Greek children.
Purpose of the Study:
- To examine secular trends in anthropometric characteristics and plasma lipids.
- To assess the influence of increasing adiposity on these trends in Greek children.
- To compare changes between normal-weight and overweight/obese boys.
Main Methods:
- Recruited 419-374 normal-weight and 109-246 overweight/obese boys in 1982 and 2002 (aged ~12 years).
- Measured height, weight, Body Mass Index (BMI), Rohrer index.
- Determined plasma lipids: Total Cholesterol (TC), HDL-C, LDL-C, Triglycerides (TG), and lipid ratios.
Main Results:
- Overweight/obese boys showed greater increases in weight, BMI, and cholesterol ratios, and a decrease in HDL-C compared to normal-weight boys.
- Height, LDL-C, and TG changes were similar in both groups.
- Rohrer index increased significantly in overweight/obese boys but not in normal-weight boys.
Conclusions:
- Secular increases in adiposity and adverse plasma lipid changes were more pronounced in overweight and obese children.
- Qualitatively similar shifts in lipids were observed across the entire population.
- Adiposity significantly impacts lipid profiles in growing children.
Background:
The prevalence of childhood overweight and obesity has been increasing rapidly during the past decades in many parts of the world. Less is known with respect to the effects of increasing adiposity on blood lipid profile. The present study was designed to examine the influence of adiposity on secular trends in anthropometric characteristics and plasma lipids of Greek children.
Methods:
A total of 419 and 374 boys with normal body weight and 109 and 246 boys with abnormal body weight (overweight and obese) were randomly recruited in 1982 and 2002, respectively (aged 12.1 +/- 0.1 years). Height, weight, body mass index (BMI, kg/m(2)), Rohrer index (kg/m(3)), plasma total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), triglyceride (TG), TC/HDL-C ratio, and LDL-C/HDL-C ratio were determined.
Results:
Temporal changes in weight (positive), BMI (positive), HDL-C (negative), and cholesterol ratios (positive) were greater among overweight and obese vs. normal-weight boys (P < 0.05), while those for height (positive), LDL-C (positive), TG (positive), and TC (no change) were of similar magnitude. The increase in Rohrer index since 1982 failed to reach significance for children with normal body weight (P = 0.077) but did so for overweight and obese subjects (P = 0.027).
Conclusions:
These results indicate that secular increases in measures of fatness and adverse changes in plasma lipids were more pronounced among overweight and obese children than among normal-weight individuals, although qualitatively similar shifts were observed across the entire population.
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