Age-Wise Distribution of Patients with Urinary Bladder Carcinoma

Introduction: Bladder cancer is the fourth most common cancer in men accounting for 6.6% of all cancer cases in the world. In women, it is the ninth most common cancer accounting for 2.4% of all cancer cases. In our country the prevalence of bladder also seems to be increasing due to increasing number of aging people, increased exposure to carcinogens but unfortunately till today, there is no available data on prevalence of bladder cancer in our country. Aim of the Study: The aim of the study is to assess age-wise distribution of patients with urinary bladder carcinoma. Methods: This cross sectional study on 819 patients of carcinoma of urinary bladder was done in 10 different hospitals in Dhaka city. This study was carried out from January 2007 to December 2009. All specimen of bladder tissue that was sent for histopathological examination were included in the study. All specimen of bladder tissue that was sent for histopathological examination that reveals other diagnosis than cancer were excluded from the study. Results: A total of 1088 patients included in the study, out of which 819(75.3%) patients having carcinoma at 95% Confidence Interval (Cl) (72.7% to 77.8%) and rest 269(24.7%) others (Benign tumour, Tubercular cystitis, Chronic cystitis) at 95% Cl (22.2%-27.3%). According to histopathological report it was observed that 792(96.7%) transitional cell carcinoma (TCC) at 95% CL (95.5% to 97.9%), 10(1.2%) squamous cell carcinoma (SCC) at 95% Cl (0.5% to 2.0%), 13(1.6%) Adenocarcinoma at 95% Cl (0.7 to 2.4%) and 4(0.5%) Mixed type (Embryonal rhabdomyoscarcoma, Scarcomatoid Ca) at 95% Cl (0 to 1.0%). In traditional cell carcinoma (TCC) it was observed that nearly one third (31.7%) of the patients belonged to 61-70 years. In squamous cell carcinoma (SCC), most (40.0%) of the patients belonged to 41-50 years. Adenocarcinoma more frequent in 41-70 years age group and mixed type was found 2(50.0%) in 51-60 years age group and 2(50.0%) in 81-90 years age groups.