No abstract

To determine which factors predict development of chronic suppurative otitis media (CSOM) in children. Design: Case-control study, with univariate and multivariate logistic regression analysis applied to determine which factors independently predict CSOM. Subjects: Prognostic factors for CSOM were identified in (1) 100 children with CSOM and 161 controls aged 1 to 12 years and (2) 83 children who developed CSOM in the presence of a tympanostomy tube and 136 children with tympanostomy tubes who did not develop CSOM. Results: Independent predictors for CSOM were previous tympanostomy tube insertion (odds ratio [OR], 121.4 [95% confidence interval {CI}, 38.9-379.3]); having had more than 3 upper respiratory tract infections in the past 6 months (OR, 12.2 [95% CI, 3.5-42.3]); having parents

Initially, trimethoprim/sulfamethoxazole usage was strongly associated with the appearance of integron-positive (multi)drug-resistant Enterobacteriaceae in the intestinal flora. After prolonged exposure to trimethoprim/sulfamethoxazole, however, this population of Enterobacteriaceae was substituted by a population with non-integron-associated resistance mechanisms. After trimethoprim/sulfamethoxazole was discontinued, susceptibility rates to all antibiotics returned to baseline levels.