Comparing Changes in Body Weight Measures
Author Information
Author(s): Helen L Walls, Anna Peeters, Haider Mannan, Christopher Stevenson
Primary Institution: Department of Epidemiology & Preventive Medicine, Monash University, Alfred Hospital, Victoria, Australia
Hypothesis
Comparisons of waist circumference and body mass index changes must account for their relationship.
Conclusion
Direct comparisons of percentage changes in waist circumference and body mass index are misleading and must consider their relationship.
Supporting Evidence
- The crude percentage change in BMI was 5.8%, while for WC it was 5.1%.
- Regression analysis showed that increases in WC were greater than expected based on increases in BMI.
- The relationship between BMI and WC is not simple and requires careful analysis.
Takeaway
When looking at how body weight changes, we can't just compare waist size and body mass index without understanding how they relate to each other.
Methodology
Data from two cross-sectional US surveys (NHANES 1988-94 and 2005-06) were analyzed using percentage change calculations and regression analysis.
Potential Biases
The relationship is data-driven and may vary based on the dataset and covariates included.
Limitations
The model is theoretical and may require adjustments for interactions between variables.
Participant Demographics
US civilian, non-institutionalized population.
Statistical Information
P-Value
p < 0.0001
Statistical Significance
p < 0.0001
Digital Object Identifier (DOI)
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