In the baseline analysis, corresponding probabilities were: (1) prevalence of asymptomatic bacteriuria, 6%,
(2) risk of progression without treating bacteriuria, 23%,
(3) risk of developing pyelonephritis with a negative diagnosis of bacteriuria, 1%,
(4) antibiotic efficacy, 80%,
(5) risk of pyelonephritis after treating bacteriuria, 3%.