Journal List > J Lipid Atheroscler > v.1(2) > 1059520

Jung, Lee, and Jee: The Association between Thigh Circumference and Lipids Profile in Korean Population: The Korea Medical Institute Study

Abstract

Objective

We performed a study of the relationship between thigh circumference and serum lipids.

Methods

A total of 314,842 Korean men and women aged 30 to 79 enrolled in the Korea Medical Institute for medical examination between February 2010 and December 2011 were included. Multiple logistic regression analysis was performed to examine the association of thigh circumference with various lipid profiles after adjustment for age, body mass index (BMI), waist circumference, smoking, and exercise.

Results

The average age of study participants was 42.3 years (42.6 years in men and 41.9 years in women). The mean thigh circumference was 53.2 cm (54.3 cm in men and 51.5 cm in women). Thigh circumference was positively correlated with BMI and waist circumference in both men and women. Before adjusting for BMI and waist circumference, thigh circumference was also positively correlated with total cholesterol, triglyceride, high-density lipoprotein (HDL) cholesterol, non-HDL cholesterol, and triglyceride / HDL cholesterol ratio. However, after adjusting for those two variables, the positive correlations became almost disappeared and showed opposite direction indicating that BMI and waist circumference were qualitative confounding variables.

Conclusions

A small thigh circumference was associated with increasing levels of lipid profiles including triglyceride and decreasing level of HDL cholesterol. Through additional researches, establishment of causality is necessary.

Figures and Tables

Fig. 1
Triglyceride level according thigh and waist circumference among men and women.
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Table 1
General characteristics of the study population
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SD: standard deviation, LDL: low-density lipoprotein, HDL: high-density lipoprotein, TG: triglyceride

Table 2
Correlation coefficients (P values) for thigh circumference with various variables among men and women
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Model 1: adjusted for age.

Model 2: adjusted for age, and body mass index.

Model 2: adjusted for age, body mass index, and waist circumference.

LDL: low-density lipoprotein, HDL: high-density lipoprotein

Table 3
Difference in serum lipids, according to thigh circumference, among men
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The reference category was a thigh circumference of 51 to <57 cm.

All differences were adjusted for age, smoking, exercise, family history of diabetes, body mass index and waist circumference.

LDL: low-density lipoprotein, HDL: high-density lipoprotein

Table 4
Difference in serum lipids, according to thigh circumference, among women
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The reference category was a thigh circumference of 48 to <54 cm.

All differences were adjusted for age, smoking, exercise, family history of diabetes, body mass index and waist circumference.

LDL: low-density lipoprotein, HDL: high-density lipoprotein

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