[Retrospective study on the risk factors in patients with nosocomial bacterial L-form infection]

To survey the risk factors of nosocomial bacterial L-form infections, 22 risk factors were investigated and analysed with nonconditional logistic regression. Resutts showed through single factor regression that cancer, chronic disease, primary infection, longer than 3-week hospitalization before the onset of nosocomial infection, preventive use of antibiotics longer than 7 days, preventive use of cell wall depressive antibiotics, steroid use, anti-tumor drugs and urine guide technique were significant factors. Multiple factor regression demonstrated that two models including cell wall depressive antibiotics, primary infection, urine guide technique cell wall depressive antibiotics, primary infection, anti-tumor drugs and longer than 3-week hospitalization before the development of nosocomial infection were conjugated properly. It suggested that the surveillance of risk factors of nosocomial bacterial L-form infections was helpful to control nosocomial infections.