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Nosocomial infections in a community hospital: 1972 through 1976
Abstract:
Of 78,057 patients discharged from a community hospital from 1972 through 1976, nosocomial infections developed in 3.58 per cent. Nosocomial infections of all types were 13.2 times more frequent for patients with rapidly fatal underlying illness and 3.4 times more frequent for patients with ultimately fatal underlying illness than in cases of nonfatal underlying illness. Outbreaks of epidemics or clusters of infections caused by the same organism were distinctly uncommon. These outbreaks accounted for only 49 of the 2,798 nosocomial infections found. No distinct trends, either increases or decreases, of infection rates by pathogen, site of infection, or service were noted during the study period. Sensitivity of the common pathogens to antibiotics also remained stable.
Insights
Nosocomial infections were more common in patients with serious underlying illnesses. However, infection rates and antibiotic resistance remained stable over the study period, with outbreaks being rare.
Area of Science:
- Hospital epidemiology
- Infectious disease surveillance
Background:
- Nosocomial infections pose a significant threat to patient safety.
- Understanding risk factors and trends is crucial for effective prevention strategies.
Purpose of the Study:
- To investigate the incidence and patterns of nosocomial infections in a community hospital.
- To identify patient characteristics associated with increased infection risk.
- To assess trends in infection rates and antibiotic sensitivity over time.
Main Methods:
- Retrospective analysis of patient discharge data from a community hospital (1972-1976).
- Calculation of nosocomial infection rates.
- Comparison of infection rates based on underlying illness severity.
- Analysis of infection outbreaks and pathogen sensitivity to antibiotics.
Main Results:
- A total of 3.58% of patients developed nosocomial infections.
- Patients with rapidly fatal or ultimately fatal underlying illnesses had significantly higher infection rates (13.2x and 3.4x, respectively) compared to those with nonfatal conditions.
- Outbreaks were uncommon, accounting for only 49 of 2,798 infections.
- No significant trends in infection rates by pathogen, site, or service were observed.
- Pathogen sensitivity to antibiotics remained stable.
Conclusions:
- Underlying illness severity is a major risk factor for nosocomial infections.
- Hospital-acquired infection rates and common pathogen antibiotic resistance were stable during the study period.
- Routine surveillance is important for monitoring infection trends and guiding antimicrobial stewardship.
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