Utility of silhouette showcards to assess adiposity in three countries across the epidemiological transition.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_5F23F06F94A5
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Utility of silhouette showcards to assess adiposity in three countries across the epidemiological transition.
Journal
PLOS global public health
Author(s)
Reese T.O., Bovet P., Choo-Kang C., Bedu-Addo K., Forrester T., Gilbert J.A., Goedecke J.H., Lambert E.V., Layden B.T., Micklesfield L.K., Plange-Rhule J., Rae D., Viswanathan B., Luke A., Dugas L.R.
ISSN
2767-3375 (Electronic)
ISSN-L
2767-3375
Publication state
Published
Issued date
2022
Peer-reviewed
Oui
Editor
Rathnaiah Babu Giridhara
Volume
2
Number
5
Pages
e0000127
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
The Pulvers' silhouette showcards provide a non-invasive and easy-to-use way of assessing an individual's body size perception using nine silhouette shapes. However, their utility across different populations has not been examined. This study aimed to assess: 1) the relationship between silhouette perception and measured anthropometrics, i.e., body mass index (BMI), waist circumference (WC), waist-height-ratio (WHtR), and 2) the ability to predict with silhouette showcards anthropometric adiposity measures, i.e., overweight and obesity (BMI ≥ 25 kg/m2), obesity alone (BMI ≥ 30 kg/m2), elevated WC (men ≥ 94 cm; women ≥ 80 cm), and WHtR (> 0.5) across the epidemiological transition. 751 African-origin participants, aged 20-68 years old, from the United States (US), Seychelles, and Ghana, completed anthropometrics and selected silhouettes corresponding to their perceived body size. Silhouette performance to anthropometrics was examined using a least-squares linear regression model. A receiver operator curve (ROC) was used to investigate the showcards ability to predict anthropometric adiposity measures. The relationship between silhouette ranking and BMI were similar between sexes of the same country but differed between countries: 3.65 [95% CI: 3.34-3.97] BMI units/silhouette unit in the US, 3.23 [2.93-3.74] in Seychelles, and 1.99 [1.72-2.26] in Ghana. Different silhouette cutoffs predicted obesity differently in the three countries. For example, a silhouette ≥ five had a sensitivity/specificity of 77.3%/90.6% to predict BMI ≥ 25 kg/m2 in the US, but 77.8%/85.9% in Seychelles and 84.9%/71.4% in Ghana. Ultimately, silhouettes predicted BMI, WC, and WHtR similarly within each country and sex but not across countries. Our data suggest that Pulvers' silhouette showcards may be a helpful tool to predict anthropometric and adiposity measures in different populations when direct measurement cannot be performed. However, no universal silhouette cutoff can be used for detecting overweight or obesity status, and population-specific differences may stress the need to calibrate silhouette showcards when using them as a survey tool in different countries.
Pubmed
Open Access
Yes
Create date
31/03/2023 12:18
Last modification date
23/01/2024 7:26
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