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"A clinical and epidemiologic study was performed on urolithiasis in Korea. The subjected cases are all of the patients whom visited to Department of Urology, College of Medicine, Chung Ang University Hospital for 3 years. The emphasis of this study laid on regional distribution of urolithiasis or climate and attitude of working activity, so on. The following results were obtained: 1. The urolithiasis were found to be 216 cases (4.O%) in the all of the out-patients(5382 cases) for 3 years(1976-1979) 2. Age distribution was between 6 and 82 years old, shows the highest incidence in 2l to 5O years old(81.9%). 3. In 216 cases of out-patients, 159 cases were male and 57 cases in female with ratio of 2.8:1. 4. Specific location of the stones showed 75% in ureter, 18.5% in kidney, 5.5% in bladder, and other are 2 cases of urethra and prostatic stone. 5. The ureteral stone was located most frequently in the lower 1/3 of the ureter with 69.5% all ureteral stones. 6. The seasonal distribution of urolithiasis in Korea was found 33.8% in the summer season which is around July. 7. Urinary calculi in this study were much more likely to found individuals who have sedentary occupation of 30.5% of all cases 8. The highest incidence of urolithiasis in Korea indicated the province of Jeon Buk (14.3%), next place is the province of Kyung Buk and Kyung Hee, like this order."
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