Definitions of risk:
For the initial intervention study (CHIC I), comparing the classroom-based
and risk-based approaches, the following definitions were used to describe
risk factors for future CVD in the children. In the risk-based intervention
schools, only children with any of these risks received sessions targeted
at their specific risk factor(s). Thus a child in a risk-based intervention
school could be assigned to one, two, or three types of intervention sessions
each week for the 8 weeks, depending on how many risk factors he had.
High cholesterol was total cholesterol of greater than or equal to 200
Obesity was having both Body Mass Index and Sum of triceps and subscapular
skinfolds greater than or equal to the 90th percentile for age and sex
by available national norms.
Low physical fitness was having a predicted maximal oxygen uptake (as determined
from a bike test) less than 34 ml/kg/min for girls and less than 39 ml/kg/min
At risk for smoking was living in a house where at least one parent smoked
or recently quit smoking.