The study protocol adheres to the principles laid out in the Declaration of Helsinki. Informed consent was obtained in writing form from all subjects before enrolment. A BMI less than 30 was observed for 65.7% of individuals. The study sample comprised 39 males (36.1%) and 69 females (63.9%). The population-based LIFE-Adult study aims at recruiting 10,000 adults from the city of Leipzig, Germany.Īnthropometric measurements were performed on 108 individuals collected by convenience sampling. The study was performed as one of several feasibility studies in preparation for the LIFE-Adult study 13. we performed subgroup analysis of probands with and without obesity. Finally, we assessed the impact of obesity, i.e. Moreover, reliabilities of CA- and corresponding BS-based anthropometric measurements were compared. We aimed to map BS quantities to CA quantities by introducing suitable proxies and evaluated their validity. We determined agreement of multiple measurements as well as intra- and inter-rater reliabilities of BS and CA measurements. We addressed these questions in preparation for a large-scale population-based study. To the best of our knowledge there is still a lack of research regarding reliability and validity of BS measurements in an epidemiologic setting. Moreover, physical contact between study technician and proband is minimal so that a higher degree of standardisation and acceptance by the proband could be expected. In just a few seconds this technique generates a “virtual twin” of the surface of the proband allowing immediate assessment of many anthropometric quantities simultaneously. Obtaining these measurements by 3D laser-based body scans (BS) promises to be an attractive alternative 12. Only few anthropometric measurements can be obtained by this approach within an acceptable time frame. These guidelines typically require time consuming standard operating procedures (SOPs) and well trained personnel. There is some debate which anthropometric proxy may be best suited to estimate, for example, the amount of body fat and its distribution.Ĭonsiderable effort has been made to standardise measurements obtained by classical manual anthropometric assessments (CA) in epidemiologic research. In adiposity research anthropometric quantities are of particular importance for assessing obesity. Abdominal fat, often operationalised as waist to hip ratio (WHR), appears to be associated with coronary heart disease independently of percentage of total body fat 9, 10, 11. For example, body mass index (BMI) was identified as a risk factor for cardiovascular diseases 1, 2, diabetes 3, 4, 5, and different neoplastic diseases 6, 7, 8. In studies of adults the importance of anthropometric quantities results from observed associations with health risks, morbidity, and mortality. For children these quantities are important for assessing growth kinetics as an indicator of proper development. Except for these issues, reliabilities of CA measurements and their BS equivalents were comparable.Īnthropometric quantities such as body height, weight, length of extremities, distances between body points, and body circumferences are routinely assessed in epidemiologic studies. Thigh length showed higher reliability in BS while upper arm length showed higher reliability in CA. BS proxies for CA measurements showed good agreement (minimum OCCC > 0.77) after offset correction. For BS, 9 of 154 quantities showed reliabilities below 0.7. For CA, OCCCs for intra- and inter-rater reliability were greater than 0.8 for all nine quantities studied. BS was slightly more time consuming but better accepted than CA. Throughout the study, the overall concordance correlation coefficient (OCCC) was chosen as indicator of agreement. We suggested BS equivalents of CA measurements and determined validity of BS considering CA the gold standard. We performed a study on 108 individuals with multiple measurements of BS and CA to estimate intra- and inter-rater reliabilities for both. The aim of this study was to compare BS with classical manual anthropometric (CA) assessments with respect to feasibility, reliability, and validity. 3D laser-based body scans (BS) allow evaluation of dozens of quantities in short time with minimal physical contact between observers and probands. Anthropometric quantities are widely used in epidemiologic research as possible confounders, risk factors, or outcomes.
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