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J Am Geriatr Soc. 1988 Aug;36(8):726-32.

Clinical correlates of bacteremia in a Veterans Administration extended care facility.

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1
Medical Service, Veterans Administration Medical Center, North Chicago, Illinois.

Abstract

Little is known about bacteremia in long-term care facilities. We have conducted a retrospective study during a 12-month period analyzing the clinical correlates of bacteremia in 533 chronically institutionalized, predominantly male patients, with an average age of 69 years. Thirty-four men had forty-two bacteremic illnesses during this period. The incidence rate was 0.30 episodes per 1000 patient care days, and the mortality rate was 21%. The urinary tract was the most frequently identified tissue source (56%), followed by respiratory tract (7%) and skin (7%). Providencia stuartii was the most common gram-negative organism, while Staphylococcus aureus, Streptococcus pneumoniae and enterococcus were the frequent gram-positive microbes. Gram-negative bacteremia accounted for 63% of the episodes (15% mortality rate), and gram-positive bacteremia accounted for 27% (18% mortality rate); 10% of the bacteremias were polymicrobial (25% mortality rate). Most of the isolated organisms were sensitive to available antimicrobial agents. The leading risk factor for bacteremia was an indwelling urinary catheter (odds ratio 39, 95% confidence limits 16 to 97). Patients with urinary catheters at the beginning of the study constituted only 5% of the population, but accounted for 40% of the gram-negative bacteremias during the year of observation.

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