Vilhjalmur Ari Arason

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OBJECTIVE To study the correlation of antimicrobial consumption with the carriage rate of penicillin resistant and multiresistant pneumococci in children. DESIGN Cross sectional and analytical prevalence study. SETTING Five different communities in Iceland. MAIN OUTCOME MEASURE Prevalence of nasopharyngeal carriage of penicillin resistant pneumococci(More)
OBJECTIVE To investigate potential links between antimicrobial drug use for acute otitis media (AOM) and tympanostomy tube placements, and the relationship between parental views and physician antimicrobial prescribing habits. DESIGN Cross-sectional community study repeated after five years. SUBJECTS Representative samples of children aged 1-6 years in(More)
BACKGROUND Widespread antimicrobial use is a risk factor for development of antimicrobial resistance. Antimicrobial treatment of acute otitis media (AOM) may not always be necessary. Little is known about the influence of parental expectations on physicians' decision-making in relation to treatment of AOM. Evidence is insufficient as to whether tympanostomy(More)
The relative effects of risk factors on the prevalence of resistant pneumococcal clones are hard to determine. Our aim was to evaluate the effect of risk factors on the prevalence of resistant pneumococci in Iceland in 2003 and compare these data with results of identical studies performed in 1993 and 1998. A randomized sample of 1,107 children was chosen(More)
The effects of community-wide interventions to reduce resistance rates are poorly understood. This study evaluated the effect of reduced antimicrobial usage on the spread of penicillin-nonsusceptible pneumococci (PNSP) in four communities in Iceland. The study was performed after interventions to reduce antimicrobial usage and compared to an identical study(More)
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