Correlation between Age, Prostatic Volume and Voiding Symptoms in Randomly Selected Korean over Age 60

Lee, Hyun; Hwa, Jung Seog; Choi, Bong Seog; Choi, Chin Wha; Kim, Joo Tae; Jung, Seung Hwa; Lee, Jae Kyung; Bahk, Jong Yoon

Abstract

Until now, we do not have specific Korean data on the age related prostatic volume and voiding symptoms associated with prostatic volume among randomized aged population. Due to this problem, we studied the correlations on the age, prostatic volume and voiding symptom among random sampled 255 people over the age 60 from the 11 Myun in Chinyang Gun, Kyungsangnam-do from the July 12th to July 26th, 1993. The mean age of the examined people was 71.5 years. 244 people answered on questionaire for voiding symptom scoring and 224 people agreed on the transrectal ultrasonic measurement of the prostatic volume. The prolate spheroid method and elliptical method were used for the measurement of the prostatic volume with the major transverse diameter, major anteroposterior diameter and cephalocaudal diameter of each prostates as Terris. The volume of the prostate ranged from 6.2cc to 54.5cc ( Prolate spheroid method ) and 4.7cc to 44.1cc(Elliptical method ). The prostate volumes measured by the elliptical method were smaller than that measured by prolate spheroid method in each age group. The average prostatic volume measured by the elliptical volume and prolate spheroid method were 17.7/22.5cc(E/P) in age 61 to 65 group(n=17), 19.9/22.8cc in age 66 to 70 group(n= 88), 21.6/ 26.0cc in age 71 to 75 group(n=71), 24.4/27.7cc in age 76 to 80 group(n=34) and 18.1/23.7cc in age over 80 group(n =14) and the pattern of the changes in the prostatic volume related with aging was significant(p <0.05 ). The voiding symptom scores were measured and divided according to the prostate volume into 3 groups, below 20cc, 20.1 to 30 and over 30cc groups. The voiding symptom scores ranged from 0 to 35 and the mean symptom scores were 10.9, 11.7 and 14.1 in each group and these changes were not statistically significant(p>0.05).