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Self-Measured vs Professionally Measured Waist Circumference.
Barbara G Carranza Leon1, Michael D Jensen2, Jennifer J Hartman3
1Endocrine Research Unit, Mayo Clinic, Rochester, Minnesota Division of Diabetes, Endocrinology & Metabolism, Vanderbilt University Medical Center, Nashville, Tennessee.
Annals of Family Medicine
|May 18, 2016
Summary
Self-measured waist circumference is not accurate enough for identifying metabolic syndrome risk. Many individuals, especially women, underestimate their waist size, leading to a high false-negative rate in risk assessment.
Area of Science:
- Clinical Medicine
- Public Health
- Preventive Cardiology
Background:
- Waist circumference is a key indicator of metabolic risk.
- Logistic challenges hinder routine professional measurement in outpatient settings.
- Accurate waist circumference measurement is crucial for identifying at-risk patients.
Purpose of the Study:
- To evaluate the accuracy of self-measured waist circumference compared to professional measurements.
- To determine if self-measurement can reliably identify patients at high risk for metabolic syndrome.
Main Methods:
- Medical outpatients and research participants provided self- and professionally measured waist circumferences.
- Standardized pictorial instructions were given for self-measurement.
- Professionals received standard measurement training.
Main Results:
- Self- and professionally measured waist circumferences showed no significant difference overall.
- A significant false-negative rate was observed in self-measurements.
- For women, 57% of normal-weight and 18% of overweight individuals undermeasured waist circumference, missing high-risk status.
Conclusions:
- Self-measured waist circumference has a high false-negative rate, exceeding 20% in some high-risk groups.
- Self-measurement is not a reliable substitute for professional measurement in identifying metabolic syndrome risk.
- Standardized instructions do not fully overcome inaccuracies in self-reported waist circumference.
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