ARTI	acute respiratory tract infections
AWMF	Association of the Scientific Medical Societies in Germany
CAP	community acquired pneumonia
CI	confidence interval
CCI	Charlson comorbidity Index
CDSS	Computerized Decision Support System
DDD	defined daily dose
DEGAM	German College of General Practitioners and Family Physicians
ESAC-Net	European Surveillance of Antimicrobial Consumption Network
GP	general practitioners
ICD	International Classification of Diseases
OR	odds ratio
PCNs	primary care networks
Q	quarter
QC	Quality circle
SO	Secondary outcome
URTI	upper respiratory tract infections