The second sample was drawn from a cross-sectional study of
environmental factors affecting children’s dietary intake that
was part of a school-based clinical trial to reduce obesity. Fifthgrade
students enrolled in 8 low-income elementary schools in
San Jose, CA, participated in this project. The students’ mothers
were contacted at school events and through telephone solicitation.
The families of the children enrolled in these schools were
primarily Mexican American and low income. Written informed
consent was obtained from the children and their mothers during the
first interview. This sample is referred to as the fifth-grade sample