Table 2: Occupational exposure to carcinogenic agents among subjects with sinonasal cancer, by gender; Lombardy region sinonasal cancer registry, 2008–2011 ( with interview).

Occupational exposureMenWomen valuea
No.%No.%

Never exposed6850.75583.3Reference
Ever exposed (any agent)6649.31116.7<0.001
 Wood dust3929.157.6<0.001
 Leather dust2317.269.10.02
 Nickel compounds43.000.00.08
 Chromium compounds43.000.00.08
 PAH21.500.00.21
 Cork dust00.011.50.27

PAH: polycyclic aromatic hydrocarbons.
aFrom chi-square test (reference: never exposed).
Note: a subject may have been exposed to more than one agent in his/her occupational history.