膀胱腫瘍に関する臨床的研究 : 第1報 : 膀胱腫瘍の臨床統計的観察

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Statistical studies were performed on 150 inpatients with primary urinary bladder tumors admitted to the department of Nara Medical University from January 1, 1963, to December 31, 1968. During the period of 6 years number of inpatients with urinary bladder tumors increased almost every year. Of the 150 inpatients, 126 were male and 24 were female, and the male-to-female ratio was 5.25 with a marked male predominance. The age distribution of the inpatients with urinary bladder tumors ranged from 23 year- to 84 year-old, and the maximum incidence lies in the 6th decade of both sexes, 33.3% in males 7.3% in females, with the total of over 40 year-old age groups occupying 96.7%. Occupational distribution of 89 inpatients with urinary bladder in Nara revealed a remarkably frequent occurrence in workers in agriculture and forestry. However, a patient was exposed to aniline dye for 7 years as a socks-maker. A correlation between cigarette smoking and the development of urinary bladder tumors was significantly noticed in the present studies. In male, smoking habit was found in 47 patients (90.2%) of 52 cases and in 71 patients (72.4%) of 98 controls. X^2-test showed a significant difference between these two groups at risk of below 2.5% (X^2=6.22, 0.025> p >0.01). In females, smoking habit was found in 7 patients (63.3%) of 11 cases and in 9 patients (16.7%) of 54 controls (X^2=8.48, p<0.01). Data on the serological test for syphilis or on distribution of ABO blood type showed no relationship between 86 patients with urinary bladder tumors and 120 patients of stomach cancer.
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膀胱腫瘍に関する臨床的研究 : 第1報 : 膀胱腫瘍の臨床統計的観察

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