[1]Concord University, Athens, WV USA;
[2]West Virginia University,Morgantown, WV USA;
[3]National Institute ofOccupational Safetyand Health (NIOSH), Morgantown, WV USA;
[4]George Washington University, Washington DC, USA;
[5]West Virginia University,Morgantown, USA;
吸烟者; 青少年; 强度; 学校; 教育水平; 健康状况; 慢性疾病; 成年人;