Antibiotic Prophylaxis and Recurrent Urinary Tract Infection in Children Export

@article{citeulike:6072594, abstract = {Background Antibiotics are widely administered to children with the intention of preventing urinary tract infection, but adequately powered, placebo-controlled trials regarding efficacy are lacking. This study from four Australian centers examined whether low-dose, continuous oral antibiotic therapy prevents urinary tract infection in predisposed children. Methods We randomly assigned children under the age of 18 years who had had one or more microbiologically proven urinary tract infections to receive either daily trimethoprim-sulfamethoxazole suspension (as 2 mg of trimethoprim plus 10 mg of sulfamethoxazole per kilogram of body weight) or placebo for 12 months. The primary outcome was microbiologically confirmed symptomatic urinary tract infection. Intention-to-treat analyses were performed with the use of time-to-event data. Results From December 1998 to March 2007, a total of 576 children (of 780 planned) underwent randomization. The median age at entry was 14 months; 64\% of the patients were girls, 42\% had known vesicoureteral reflux (at least grade III in 53\% of these patients), and 71\% were enrolled after the first diagnosis of urinary tract infection. During the study, urinary tract infection developed in 36 of 288 patients (13\%) in the group receiving trimethoprim-sulfamethoxazole (antibiotic group) and in 55 of 288 patients (19\%) in the placebo group (hazard ratio in the antibiotic group, 0.61; 95\% confidence interval, 0.40 to 0.93; P=0.02 by the log-rank test). In the antibiotic group, the reduction in the absolute risk of urinary tract infection (6 percentage points) appeared to be consistent across all subgroups of patients (P[\≥]0.20 for all interactions). Conclusions Long-term, low-dose trimethoprim-sulfamethoxazole was associated with a decreased number of urinary tract infections in predisposed children. The treatment effect appeared to be consistent but modest across subgroups. (Australian New Zealand Clinical Trials Registry number, ACTRN12608000470392.) 10.1056/NEJMoa0902295}, author = {Craig, Jonathan C. and Simpson, Judy M. and Williams, Gabrielle J. and Lowe, Alison and Reynolds, Graham J. and McTaggart, Steven J. and Hodson, Elisabeth M. and Carapetis, Jonathan R. and Cranswick, Noel E. and Smith, Grahame and Irwig, Les M. and Caldwell, Patrina H. Y. and Hamilton, Sana and Roy, Leslie P. and the Prevention of Recurrent Urinary Tract Infection in Children with Vesicoureteric Reflux and Normal Renal Tracts PRIVENT Investigators}, citeulike-article-id = {6072594}, citeulike-linkout-0 = {http://dx.doi.org/10.1056/NEJMoa0902295}, citeulike-linkout-1 = {http://content.nejm.org/content/361/18/1748.abstract}, citeulike-linkout-2 = {http://content.nejm.org/content/361/18/1748.full.pdf}, citeulike-linkout-3 = {http://view.ncbi.nlm.nih.gov/pubmed/19864673}, citeulike-linkout-4 = {http://www.hubmed.org/display.cgi?uids=19864673}, day = {29}, doi = {10.1056/NEJMoa0902295}, issn = {1533-4406}, journal = {N Engl J Med}, keywords = {child, prophylaxis, uti}, month = {October}, number = {18}, pages = {1748--1759}, posted-at = {2009-11-05 07:42:28}, priority = {2}, title = {Antibiotic Prophylaxis and Recurrent Urinary Tract Infection in Children}, url = {http://dx.doi.org/10.1056/NEJMoa0902295}, volume = {361}, year = {2009} }

TY - JOUR ID - citeulike:6072594 L3 - citeulike-article-id:6072594 N2 - Background Antibiotics are widely administered to children with the intention of preventing urinary tract infection, but adequately powered, placebo-controlled trials regarding efficacy are lacking. This study from four Australian centers examined whether low-dose, continuous oral antibiotic therapy prevents urinary tract infection in predisposed children. Methods We randomly assigned children under the age of 18 years who had had one or more microbiologically proven urinary tract infections to receive either daily trimethoprim-sulfamethoxazole suspension (as 2 mg of trimethoprim plus 10 mg of sulfamethoxazole per kilogram of body weight) or placebo for 12 months. The primary outcome was microbiologically confirmed symptomatic urinary tract infection. Intention-to-treat analyses were performed with the use of time-to-event data. Results From December 1998 to March 2007, a total of 576 children (of 780 planned) underwent randomization. The median age at entry was 14 months; 64% of the patients were girls, 42% had known vesicoureteral reflux (at least grade III in 53% of these patients), and 71% were enrolled after the first diagnosis of urinary tract infection. During the study, urinary tract infection developed in 36 of 288 patients (13%) in the group receiving trimethoprim-sulfamethoxazole (antibiotic group) and in 55 of 288 patients (19%) in the placebo group (hazard ratio in the antibiotic group, 0.61; 95% confidence interval, 0.40 to 0.93; P=0.02 by the log-rank test). In the antibiotic group, the reduction in the absolute risk of urinary tract infection (6 percentage points) appeared to be consistent across all subgroups of patients (P[≥]0.20 for all interactions). Conclusions Long-term, low-dose trimethoprim-sulfamethoxazole was associated with a decreased number of urinary tract infections in predisposed children. The treatment effect appeared to be consistent but modest across subgroups. (Australian New Zealand Clinical Trials Registry number, ACTRN12608000470392.) 10.1056/NEJMoa0902295 IS - 18 JF - N Engl J Med SN - 1533-4406 EP - 1759 TI - Antibiotic Prophylaxis and Recurrent Urinary Tract Infection in Children VL - 361 SP - 1748 KW - child KW - prophylaxis KW - uti AU - Craig, Jonathan AU - Simpson, Judy AU - Williams, Gabrielle AU - Lowe, Alison AU - Reynolds, Graham AU - McTaggart, Steven AU - Hodson, Elisabeth AU - Carapetis, Jonathan AU - Cranswick, Noel AU - Smith, Grahame AU - Irwig, Les AU - Caldwell, Patrina AU - Hamilton, Sana AU - Roy, Leslie AU - the Prevention of Recurrent Urinary Tract Infection in Children with Vesicoureteric Reflux and Normal Renal Tracts PRIVENT Investigators PY - 2009/10/29/ UR - http://dx.doi.org/10.1056/NEJMoa0902295 ER -