Are twelfth graders at greater risk of becoming fatter?

Significantly more twelfth (15.6%) grade students than tenth (7.3%) and ninth (5%) grade students had been physically inactive in the week prior to completing the survey. Also, fewer twelfth graders attend weekly or daily physical education classes. For more details, see pages 65-70 on Physical Activity in the report.

The link address is: http://www.cwru.edu/med/adolescenthealth/2002_yrbs_report.pdf