Nasal cancer mortality in areas with a high proportion of wood and furniture workers in Japan.

To see whether or not death from nasal cancer (ICD 160) increased in the areas where a proportion of woodworkers is high in Japan, two studies were carried out by examining standardized mortality ratios (SMRs) of nasal cancer at a Health Center and in 10 cities selected as wood industry areas. No excess risk of nasal cancer with statistical significance was seen. It would be very difficult to conclude that there is a definite excess risk of nasal cancer among woodworkers in Japan. Further investigation is needed.