Sociodemographic and biometric characteristics of study subjects.

aThe excess weight group is composed of participants originally classified as having overweight (n = 16) or obesity (n = 20) according to the International Obesity Task Force criteria;bSES: Socioeconomic status. Quintiles for SES are defined according to data from the Financial Survey for Spanish Families, http://www.bde.es/webbde/es/estadis/eff/eff.html;cBMI: Body mass index.