Use of the national noscomial infection surveillance system risk index for prediction of mortality: results of a 6-year postdischarge follow-up study.

A positive linear trend (P<.001) between the National Noscomial Infection Surveillance system (NNIS) risk index and mortality was observed in 2,848 general surgery patients followed up 6 years after discharge. In stratified analyses, the NNIS risk index predicted mortality in patients with chronic disease (P=.

Indices of surgical site infection risk and prediction of other adverse outcomes during hospitalization.

Objective: To assess which adverse postsurgical outcomes are best predicted by the Study on the Efficacy of Nosocomial Infection Control (SENIC) index and the National Nosocomial Infection Surveillance system (NNIS) index.

Design: Prospective cohort study.

Setting: The service of general surgery at a tertiary care hospital.

A prospective study of tobacco smoking as a predictor of complications in general surgery.

Objective: To analyze whether tobacco smoking is related to nosocomial infection, admission to the intensive care unit, in-hospital death, and length of stay.

Design: A prospective cohort study.

Setting: The Service of General Surgery of a tertiary-care hospital.

Cholesterol and serum albumin levels as predictors of cross infection, death, and length of hospital stay.

Hypothesis: The levels of cholesterol, its fractions (high-density lipoprotein cholesterol [HDL-C] and low-density lipoprotein cholesterol [LDL-C]), and serum albumin reflect nutritional status and are related to in-hospital death, nosocomial infection, and length of stay in the hospital.

Design: A prospective cohort study of hospitalized patients.

Setting: The Service of General Surgery of a tertiary hospital.