title: [Tobacco smoking and multiple primary cancers].
abstract: Seventy six patients (55 males and 21 females) aged from 39 to 89 (mean 63.7 +/- 9.7) years with multiple primary cancers were described. Larynx cancer was the most commonly seen multiple primary cancer component (35.5%) followed by lung cancer (12.5%). Combination of larynx cancer and lung cancer was the most often observed connection (21.1%). In seventeen patients two cancers were diagnosed concurrently. In other cases the interval between two cancers varied from 1 to 24 (mean 6.9 +/- 6.1) years. Smoking rate was 80.3% at diagnosis of the second cancer and only 10 patients (13.1%) quit smoking when first cancer was recognized. The results of the research indicate the necessity of conducting wide prophylactic actions.
authors.affiliation: Katedra i Klinika Chorób Wewnetrznych, Geriatrii i Toksykologii Klinicznej, Akademii Medycznej w Gdańsku.
authors.forename: Zygmunt
authors.initials: Z
authors.lastname: Chodorowski
authors.forename: Czesław
authors.initials: C
authors.lastname: Stankiewicz
authors.forename: Jacek
authors.initials: J
authors.lastname: Sein Anand
authors.forename: Marek
authors.initials: M
authors.lastname: Wiśniewski
authors.forename: Wojciech
authors.initials: W
authors.lastname: Sierszeń
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D004067:Digestive System Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D010610:Pharyngeal Neoplasms / Q000453:epidemiology*; D012142:Respiratory Tract Neoplasms / Q000453:epidemiology*; D012307:Risk Factors; D017678:Sex Distribution; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000706:statistics & numerical data; D015996:Survival Rate