2.3. Anthropometric Measurements
Data were obtained on the body weight and height of all participants to avoid bias due to a possibly higher food requirement. These were collected by a family pediatrician, who performed a regular medical examination before school enrollment between March and June 2020. Height was measured (±0.1 cm) using a stadiometer, and body weight (±0.1 kg) using an electronic scale. Participants wore light underwear and no shoes. The body mass index (BMI) was also recorded, and each child’s weight status was defined according to the International Working Group on Obesity‘s sex- and age-specific cut-offs for children [