Table 1.

Description of routinely collected data – basic information of primary care physician and consulations

Variable groups	Description of variables
Table 1a) Physician identifier and demographics
Physician identifier	Encrypted number (pseudonymized ZSR number)
Canton	Location of the practice (Swiss cantons)
Speciality	General internal medicine, pediatrics or family doctor
Table 1b) patient identifier and demographics
Patient Identifier	Encrypted number (pseudonymized from health insurerdatabases)
Age category (in 2017)	For years 0–5; 6–10; 11–15; in 5-year categories up to registered maximum age
Majority	Yes/no
Gender	Male, female
Insurance membership Identifier	Pseudonymized codes for the three health insurers
Table 1c) consultation data including the primary outcome data of antibiotic prescribing
Consultation	Date of consultation, specific Tarmed code(s) and total number of Tarmed code(s)
Table 1d) claims consultation data with relevant diagnostic test ordering, prescribing of all medication (pharmacy costing groups)
Diagnostic	Date of laboratory analysis, code(s) from the list of laboratory analyses
Pharmacy-Cost groups	Date of the prescription, complete ATC code, total number of prescriptions in ATC group, total costs according to claims in CHF, costs per package
Antibiotics	Date of the prescription, all pharma codes from ATC group J01, complete ATC code (ATC group J01), number of prescribed packages, total costs according to claims in CHF, costs per packages in CHF
Table 1e) Inpatient information
Hospitalization	Date of hospital admission, date of hospital discharge, DRG code(s)