title: [Epidemiologic analysis of patients with laryngeal and hypopharyngeal cancer treated in the Department of Otolaryngology in Białystok from 1986-1999].
abstract: Epidemiological analysis of patients with the larynx cancer, who were treated in the Department of Otolaryngology in Białystok from 1996 to 1999 was performed. The following aspects were assessed: a) number of patients, b) gender, c) age, d) place of living, e) primary site of the tumour. The results in years 1996-1999 were compared with the earlier published results in years 1986-1994. Altogether 1431 patients (1340-93.6% males and 91-6.4% females) in that period and there were similar numbers of hospitalizations every year. Among patients there were 28-33% farmers, 41-46% labourers, 5-9% white collar workers, the others were old age pensioners. 55-59% patients came from the rural areas and 41-45% patients from urban areas. The most common site of the primary tumour was the supraglottic region (831-58.1%), then glottis (421-29.4%) and rarely in the subglottic region (5-0.3%). Hypopharynx was the tumor primary site in 174 (12.2%) patients. The analysis showed that the numbers of patients with cancer of the larynx or hypopharynx are similar in each year. A constant increase in number of female patients; coming from the rural area, farmers or labourers was found. Increasing incidence rate of supraglottic tumours and little decrease in the number of glottic tumours were also found.
authors.affiliation: Klinika Otolaryngologii AM w Białymstoku.
authors.forename: Ireneusz
authors.initials: I
authors.lastname: Rzewnicki
authors.forename: Jarosĺaw
authors.initials: J
authors.lastname: Łuczaj
authors.forename: Ewa
authors.initials: E
authors.lastname: Olszewska
authors.forename: Maciej
authors.initials: M
authors.lastname: Lachowicz
mesh_terms: D000328:Adult; D005260:Female; D006748:Hospital Departments / Q000706:statistics & numerical data; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000145:classification / Q000453:epidemiology*; D015994:Incidence; D007822:Laryngeal Neoplasms / Q000145:classification / Q000453:epidemiology*; D008297:Male; D010036:Otolaryngology / Q000706:statistics & numerical data; D011044:Poland / Q000453:epidemiology; D017678:Sex Distribution
vernacular_title: Analiza epidemiologiczna chorych na raka krtani i gardła dolnego leczonych w Klinice Otolaryngologii AM w Białymstoku w latach 1986-1999.