engleski

Age and sex distribution and localization of colorectal cancer in hospital cancer registry (1989-2004)

Aim of the study: Colorectal cancer generally shows left-sided predominance, but recent epidemiological studies found an increase in the incidence of right-sided cancers, which might have clinical implication for the use of diagnostic or screening tools. The aim of study was to examine this trend of colorectal cancer in our database during a 16-year period. Material and methods: We analysed 3075 patients diagnosed with colorectal cancer during the period 1989-2004. Patients were assessed according to age, sex and localisation of tumor. Results: From a total 3075 patient, 57.2% were male and 42.8 % female. A trend of increase in the male sex was observed. In both sexes the average age of patients increased from 63.5 years at the start of the studied period to 67.0 years at the end. The mean age of patients with right-sided carcinoma was slightly higher (66.3) than in patients with left-sided cancer (65.3). When observing the distribution of cancer, the most common localisation was the recto-sigmoid (77.3%), folloved by ascending colon with 7.1%, cecum and transverse colon with 6.6% and 6.1 % and finally descending colon with only 3%. We found a definite increase in the trend of right-sided colorectal cancer (from 16% to 22%) in both sexes, especially during the last 6 years. Conclusion: Our study shows a male predominance in patients with colorectal cancer and an increase of average age in both sexes. Right-sided cancer is more frequent now than in the past that corresponds to studies done in other western European countries.

colorectal cancer; localization; hospital cancer registry

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