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Table 4 Distribution of exposure to wood dust in relation to histological diagnosis of sinonasal cancers.

From: K-rasmutations in sinonasal cancers in relation to wood dust exposure

Wood dust exposure crude Males Females
  Squamous cell carcinoma Adenocarcinoma Other Squamous cell carcinoma Adenocarcinoma Other
No exposure (interview) 19 3 1 22 2 2
No exposure according to registers 32 12 4 29 8 0
Wood dust exposure confirmed by interview 6 29 0 - - -
Wood dust exposure according to registers 1 4 0 - - -
Total 58 48 5 51 10 2
  1. The wood dust exposure is based on information from three sources: 1, personal interview, 2, trade and job codes from the National Pension Fund (NPF) and 3, self reported job titles in Central Person Registry (CPR). A minimum employment length of one year was set as a lower limit. If a patient's data from NPF or CPR did not imply any wood dust related employments the patient was considered not exposed to wood dust. Patients without any records in NPF and CPR are also regarded as not exposed since they have not been an employee and therefore unlikely to be exposed to wood dust. The information from the interview was weighted more important than that in the data retrieved from the two registers. The patients in the rows of no exposure confirmed by interview and no exposure according to registers are referred to as not exposed to wood dust. The patients in the rows wood dust exposure confirmed by interview and wood dust exposure according to registers are categorized as exposed to wood dust.