Tobacco use among Japanese schoolchildren: results from preliminary study of Japan adolescent smoking survey (JASS)

Over the past two decades many studies have shown associations between smoking and increased health problems. Smoking among children is especially a major public health concern. Preventing young people from developing a smoking habit is an important goal for school health education. In Japan, it is difficult to collect accurate data regarding adolescent smoking behaviour, because in Japan smoking under the age of 20 is prohibited by law....