Total (n=4813) Smoking Smoking p-value
Yes (n=1056) No (n=3757)
Maxillary sinusitis, n (%) 643 (13.4) 202 (19.1) 441 (11.7) <0.001*
Ethmoid sinusitis, n (%) 69 (1.4) 31 (2.9) 38 (1.0) <0.001*
Frontal sinusitis, n (%) 70 (1.5) 23 (2.2) 47 (1.3) 0.026*
Sphenoiditis, n (%) 78 (1.6) 19 (1.8) 59 (1.6) 0.603