A recent international review reported that between 8-89% of tobacco harvesters may be affected in the course of a season (this wide variation probably being due to differences between study methodologies as well as a range of working conditions).
国際調査は、収穫期ごとにタバコ収穫者の8-89%が影響を受けている可能性があると報告された（割合の広さの原因は研究方法や作業条件によるであろう）。