More than 298,000 Iowans affirmed their support for the Healthiest State Initiative by participating in the third annual Healthiest State Walk yesterday, organizers said. Wednesday's reported event participation in the 1-kilometer walk was slightly higher than the 2011 and 2012 events, and brought the three-year total of reported Healthiest State Walk participants to more than 886,000. The event is part of the Healthiest State Initiative launched three years ago, which is aimed at making Iowa the nation's healthiest state by 2015. It now ranks No. 9, according to the Gallup-Healthways Well-Being Index. "We all recognize that a 1-kilometer walk won't change a person's health by itself," said Ric Jurgens, chair of the initiative's board. "But the incredible level of participation demonstrates our citizens' commitment to making tangible steps toward higher levels of well-being."