RT Journal Article
SR Electronic
T1 LATE-BREAKING ABSTRACT: Validation of self-reported body silhouettes in a Northern European study
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP PA4264
DO 10.1183/13993003.congress-2016.PA4264
VO 48
IS suppl 60
A1 Marianne Lønnebotn
A1 Jannicke Igland
A1 Cecilie Svanes
A1 Bertil Forsberg
A1 Thorarinn Gislason
A1 Mathias Holm
A1 Christer Janson
A1 Rain Jogi
A1 Vivi Schlünssen
A1 Julia Dratva
A1 Francisco Gomez Real
YR 2016
UL http://erj.ersjournals.com/content/48/suppl_60/PA4264.abstract
AB Background While current height and weight is reported with high accuracy and can be measured with high precision, past height and weight is difficult to recall and retrieve. Body silhouettes at various ages through the life span have been used for this purpose, while to our knowledge the validity of past body silhouettes has not been validated.Aim of study To validate the use of body silhouettes for assessing retrospectively BMI at age 30 and 45 years, with height and weight reported 12 years prior to body silhouettes.Methods Respiratory Health In Northern Europe study (RHINE) is a population based cohort with random population samples of men and women, established in 1992 and followed up in 2000 and 2012. The study population comprised 3430 participants (1826 men and 1604 women) who reported body silhouettes in 2012 and height and weight in 2000. Of these 829 men and 1153 women where 30±2 years old and 997 men and 451 women were 45±2 years old, in 2000. Obesity was defined according to WHO criteria as BMI >30 kg/m2. We calculated Spearman correlation between BMI and body silhouettes and ROC Analyses for identifying obesity.Results Spearman correlation between BMI at age 30 and body silhouettes at age 30 was 0.69 and 0.57 for women and men, respectively, while the corresponding correlations for age 45 were 0.68 and 0.60, respectively. The area under the curve (AUC) for identification of obese women at age 30 was 0.92, while the corresponding AUC for men was 0.90. The optimal cut point for identification of obesity was body silhouette ≥5 for both men and women.Conclusions Reported past body silhouettes at ages 30 and 45 is a valid epidemiological tool to assess BMI retrospectively.