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[Epidemiologic importance of gallbladder neoplasms in Belgrade].

The average standardized mortality rate caused by gallbladder neoplasms in Belgrade during the period from 1975 to 1990 amounted to 2.8 in 100,000 inhabitants. It was much higher in women -3.5/10000 than in men--1.9/10000. Considering specific age mortality rates they show low values for people to 54 years of age, and then an abrupt increase happens with the highest values recorded in the oldest group. Mortality trend caused by gallbladder neoplasms examined during these 16 years at this territory shows growth (y = 1.37 + 0.17x) which is more expressed in females (y = 1.46 + 0.24x) than in males (y = 1.35 + 0.07x).