Prescription rate by clinicians (%), frequency of use in patients (%) and their relative reduction: a summary for all 129 ineffective interventions and 68 effective interventions in 6,272 clinicians.

Notes: PIT = clinician-intervention times; AR-PR = absolute reduction in prescription rate; RR-PR = relative reduction in prescription rate; AR-PU = absolute reduction in frequency of use in patients; RR-PU = relative reduction in frequency of use in patients.