Factors associated with the use of rapid antigen diagnostic tests in children presenting with acute pharyngitis among French general practitioners

In this investigation, we wanted: (i) to describe the attitudes and declared practices of a representative sample of French general practitioners (GPs) regarding rapid antigen diagnostic tests (RADTs) for acute pharyngitis and (ii) to identify the GPs' characteristics associated with the use of an RADT in the last paediatric patient with pharyngitis. We performed a cross-sectional survey conducted in 2012 among a representative sample of 1,126 self-employed GPs in France. 60.1 % of GPs declared that they used an RADT in their last patient aged between 3 and 16 years presenting with acute pharyngitis; 29.6 % of these tests were positive. Among the GPs who did not use an RADT, 50.2 % prescribed an antibiotic, compared to 30.5 % of prescriptions among GPs who performed an RADT, whatever its result. In a multivariate analysis, GPs' age between 45 and 54 years and having attended Continuing Medical Education (CME) sessions on infectious diseases in the past year were significantly associated with an increased use of an RADT in the last patient with pharyngitis, whereas a low volume of activity, occasionally practising alternative medicine, receiving pharmaceutical representatives at the practice and declaring a consultation duration \textless15 min were factors associated with a decreased use of RADTs. The use of RADTs by GPs must be promoted; our findings could help define interventions to improve practice.