Changes in waist circumference relative to body mass index in Chinese adults, 1993-2009.

ABSTRACT:

Background

Although body mass index (BMI) and waist circumference (WC) are correlated, the relationship between WC and BMI may have changed over time.

Objectives

To describe temporal trends in BMI and WC distributions and quantify the increase in WC at a given BMI over time.

Subjects/methods

Data on adults aged 20-59 years from two waves (1993 and 2009) of the China Health and Nutrition Survey were used in a pooled cross-sectional analysis. Quantile regression examined age-adjusted temporal trends in the distributions of BMI and WC. Linear regression examined changes in mean WC over time, adjusting for BMI, age at survey and survey year. All models were stratified by gender.

Results

There was a significant increase in BMI and WC over time, particularly at the 9

SUBMITTER: Stern D 

PROVIDER: S-EPMC4229489 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature