| secular trends in rates and etiology of nosocomial urinary tract infections at a university hospital. | to examine changing trends in the microbial etiology of nosocomial urinary tract infections, we reviewed culture data from a surveillance database for the calendar years 1982 to 1991. the overall rates of nosocomial urinary tract infections have increased significantly during the last decade from 2.63 per 1,000 patient-days to 4.35 per 1,000 patient-days (p = 0.0023). for specific isolates the rates of yeasts, klebsiella pneumoniae and group b streptococcus have increased significantly during th ... | 1993 | 8326566 |