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KMID : 0384320000210010075
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Korean Journal of Family Medicine
2000 Volume.21 No. 1 p.75 ~ p.83
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A study on the bacteriuria in the elderly who reside in a nursing home
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Seo Jae-Pil
Lee Sang-Kyun
Sim Hae-Seong
Kim Sun-Mee
Yoon Do-Kyung
Park Young-Kyu
Chang Jung-Ae
Cho Kyung-Hwan
Hong Myung-Ho
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Abstract
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Background : Urinary tract infection(UTI) is one of the most common diseases dealt with by primary physicians. UTI is common in the elderly and has a great influence on the quality of the elderly’s life. Thus, we conducted a study in one nursing home to find out the prevalence of bacteriuria and epidemiologic characteristics of the elderly.
Methods : The study was performed twice on April 12 and on May 4, 1999 among 108 subjects residing in a nursing home of Hanam City. The authors inquired the subjects pertaining to the history of UTI symptoms, collected urine samples by midstream clean-catch technique and catheterization and performed routine and microscopic urine analysis and urine culture.
Results : The overall prevalence of bacteriuria in subjects was 23.1%(25/108) ; 20%(3/15) in males and 23.7%(22/93) in females. The prevalence of the bedridden subjects was 40.9%(9/22). Among the urine samples of 25 cases which were positive in the urine culture, E. Coli was found in 15 cases(60%). The sensitivity, specificity, positive and negative predictive value of pyuria for bacteriuria were 44.0%(11/25), 87.9%(73/83), 52.3%(11/21) and 83.9%(73/87), respectively, while those of nitrite test for bacteriuria were 64.0%(16/25), 97.5%(81/83), 88.8%(16/18) and 90.0%(81/90), respectively. The prevalence of bacteriuria increased by 16.23% as age increased by ten years using
the Cochran-Armitage’s linear trend test.
Conclusions : The prevalence of bacteriuria in the elderly residing in a nursing home was higher than that of the elderly residing in a community. In the elderly over 60 years old, the prevalence of bacteriuria increased as the age increased. Immobility is considered as a risk factor of bacteriuria. Bacteriuria may be treated by antibiotics focused on E. Coli. Thus, we can expect improvement in the quality of life as well as extension of life span.
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KEYWORD
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elderly, bacteriuria, pyuria, ritrite test, urine culture
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