OBJECTIVE: To determine whether there are any risk factors that differentiate children with systemic infections due to Streptococcus pneumoniae relatively or fully resistant (minimum inhibitory concentration > 0.1 microgram/mL) to penicillin from those children with infections due to S pneumoniae susceptible to penicillin. DESIGN: Retrospective case-control study. SETTING: A large children's hospital. PARTICIPANTS: Forty-three children with systemic penicillin-resistant S pneumoniae infections identified at Texas Children's Hospital over the 51-month period from January 1989 through March 1993. Each case had one or two controls matched only for age and date of S. pneumoniae infection. Sixty-six controls were selected from a group of 341 children with susceptible isolates. OUTCOME MEASURES: Variables compared included gender, race, diagnosis, underlying conditions, past hospitalization, geographic area of residence, antibiotic use in past month, amoxicillin-clavulanic acid use in past month, and outcome. RESULTS: Thirty-seven patients (86%) had relatively resistant isolates (minimum inhibitory concentration range 0.125 to 1.0 microgram/mL) and six patients (15%) had fully resistant isolates (minimum inhibitory concentration range 2.0 to 8.0 micrograms/mL). Thirty-three percent of the cases vs 36% of the controls had underlying conditions. Seventy-one percent of the cases vs 39% of the controls had received antibiotics in the previous month. Compared with their matched controls, the patients with penicillin-resistant systemic pneumococcal infections were more likely (P = .02) to have received a course of antibiotics within the month prior to their infection. CONCLUSION: The only identified associated risk factor in children who developed a systemic penicillin-resistant pneumococcal infection appears to have been the use of antibiotics within the month prior to their infection.
OBJECTIVE: To determine whether there are any risk factors that differentiate children with systemic infections due to Streptococcus pneumoniae relatively or fully resistant (minimum inhibitory concentration > 0.1 microgram/mL) to penicillin from those children with infections due to S pneumoniae susceptible to penicillin. DESIGN: Retrospective case-control study. SETTING: A large children's hospital. PARTICIPANTS: Forty-three children with systemic penicillin-resistant S pneumoniae infections identified at Texas Children's Hospital over the 51-month period from January 1989 through March 1993. Each case had one or two controls matched only for age and date of S. pneumoniae infection. Sixty-six controls were selected from a group of 341 children with susceptible isolates. OUTCOME MEASURES: Variables compared included gender, race, diagnosis, underlying conditions, past hospitalization, geographic area of residence, antibiotic use in past month, amoxicillin-clavulanic acid use in past month, and outcome. RESULTS: Thirty-seven patients (86%) had relatively resistant isolates (minimum inhibitory concentration range 0.125 to 1.0 microgram/mL) and six patients (15%) had fully resistant isolates (minimum inhibitory concentration range 2.0 to 8.0 micrograms/mL). Thirty-three percent of the cases vs 36% of the controls had underlying conditions. Seventy-one percent of the cases vs 39% of the controls had received antibiotics in the previous month. Compared with their matched controls, the patients with penicillin-resistant systemic pneumococcal infections were more likely (P = .02) to have received a course of antibiotics within the month prior to their infection. CONCLUSION: The only identified associated risk factor in children who developed a systemic penicillin-resistant pneumococcal infection appears to have been the use of antibiotics within the month prior to their infection.
Authors: Henry D Kalter; Robert H Gilman; Lawrence H Moulton; Anna R Cullotta; Lilia Cabrera; Billie Velapatiño Journal: Am J Trop Med Hyg Date: 2010-05 Impact factor: 2.345
Authors: R F Jacobs; S L Kaplan; G E Schutze; A S Dajani; R J Leggiadro; C S Rim; S K Puri Journal: Antimicrob Agents Chemother Date: 1996-04 Impact factor: 5.191
Authors: Stef L A M Bronzwaer; Otto Cars; Udo Buchholz; Sigvard Mölstad; Wim Goettsch; Irene K Veldhuijzen; Jacob L Kool; Marc J W Sprenger; John E Degener Journal: Emerg Infect Dis Date: 2002-03 Impact factor: 6.883