In:
Public Health Nutrition, Cambridge University Press (CUP), Vol. 19, No. 11 ( 2016-08), p. 1944-1951
Abstract:
The aim of the present study was to validate figural drawing scales depicting extremely lean to extremely obese subjects to obtain proxies for BMI and waist circumference in postal surveys. Design Reported figural scales and anthropometric data from a large population-based postal survey were validated with measured anthropometric data from the same individuals by means of receiver-operating characteristic curves and a BMI prediction model. Setting Adult participants in a Scandinavian cohort study first recruited in 1990 and followed up twice since. Subjects Individuals aged 38–66 years with complete data for BMI ( n 1580) and waist circumference ( n 1017). Results Median BMI and waist circumference increased exponentially with increasing figural scales. Receiver-operating characteristic curve analyses showed a high predictive ability to identify individuals with BMI 〉 25·0 kg/m 2 in both sexes. The optimal figural scales for identifying overweight or obese individuals with a correct detection rate were 4 and 5 in women, and 5 and 6 in men, respectively. The prediction model explained 74 % of the variance among women and 62 % among men. Predicted BMI differed only marginally from objectively measured BMI. Conclusions Figural drawing scales explained a large part of the anthropometric variance in this population and showed a high predictive ability for identifying overweight/obese subjects. These figural scales can be used with confidence as proxies of BMI and waist circumference in settings where objective measures are not feasible.
Type of Medium:
Online Resource
ISSN:
1368-9800
,
1475-2727
DOI:
10.1017/S136898001600015X
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2016
detail.hit.zdb_id:
2016337-X
SSG:
21
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