Standardized Infection Ratios for Three General Surgery Procedures: A Comparison Between Spanish Hospitals and U.S. Centers Participating in the National Nosocomial Infections Surveillance System

Autor: V. Monge Jodra, N. López Fresneña, A. Robustillo Rodela, F. Martín Martínez
Rok vydání: 2003
Předmět:
Zdroj: Infection Control & Hospital Epidemiology. 24:744-748
ISSN: 1559-6834
0899-823X
0195-9417
DOI: 10.1086/502124
Popis: Objectives:To compare Spanish surgical wound infection (SWI) rates for three procedures with those published by the U.S. NNIS System, and to analyze quarterly trends.Design:This was a 4-year prospective analysis of SWI using data from a Spanish nosocomial infection surveillance network based on CDC classification criteria. SWI rates were computed as standardized infection ratios (SIRs). Trends for both SWIs and SIRs were evaluated by linear regression.Setting:Forty-three Spanish hospitals during 1997 through 2000.Patients:Those undergoing cholecystectomy (n = 7,631), appendectomy (n = 5,780), and herniorrhaphy (n = 9,864).Results:For cholecystectomy patients, the SWI rate was 4.38% and the SIR was 3.32. Both of these variables showed a slightly rising, although nonsignificant, linear trend during the study period. For appendectomy patients, the SWI rate was 7.94% and the SIR was 2.86. The linear trend was increasing for both, but only the SWI rate attained significance. For herniorrhaphy patients, the SWI rate was 1.77% and the SIR was 1.64. Both of these variables showed a significant descending tendency during the 4 years.Conclusions:Because the SIR takes into account the patient risk category, it is the best indicator of the trend shown by the SWI rate over time for a given surgical procedure. According to our comparison of SIRs with reference NNIS System values, SWI rates for cholecystectomy and appendectomy were high. Monitoring of the SIR will provide a basis for the design of infection control measures and the assessment of their effectiveness.
Databáze: OpenAIRE