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Table 1 Description of routinely collected data

From: Personalized prescription feedback to reduce antibiotic overuse in primary care: rationale and design of a nationwide pragmatic randomized trial

Aggregated patient data
Physician Identifier Anonymized number
Canton Location of practice (Swiss cantons)
 - Time period Year and month of reimbursement/prescriptiona
  ◦ Age category For years 0–5; 6–10; 11–15; 16–18; 19–20; 21–25; then in 5-year categories up to 120 years
  ◦ Gender Male, female or missing
   ▪ Total number of patients Total number of patients treated by this physician in this month (as defined by the identifier and time period) who are within the age and gender category and have claims in this month.
   ▪ Total number of consultations Total number of consultations of this physician in this month (as defined by the identifier and time period) who are within the age and gender category and have claims in this month.
Aggregated prescription data
Physician Identifier Anonymized number
Cantonb Location of practice (Swiss cantons)
 - Time period Year and month of eimbursement/prescriptiona
  ◦ Drug identifier 5- or 7-digit number to uniquely describe a drug (provided for antibiotics only)
  ◦ ATC code ATC code up to level 5 for a drug (provided for antibiotics and selected other drugs)
   ▪ Age category For years 0–5; 6–10; 11–15; 16–18; 19–20; 21–25; then in 5-year categories up to 120 years
   ▪ Gender Male, female or missing
    • Total number of prescriptions Total number of prescriptions (drug packages) by this physician in this month (as defined by the identifier and time period) who are within the age and gender category and have claims in this month.
  1. All data are from the SASIS-AG-Tarifpool and SASIS-AG-Datenpool and cover the years 2013 to 2015
  2. aTwo separate records, organized either by prescription date or by reimbursement date
  3. bDrug dispensing status derived by canton: self-dispensing are physicians from the cantons (official acronym) AI, AR, BL, GL, LU, NW, OW, SG, SH, SO, SZ, TG, UR, ZG, ZH. Non-self dispensing: FR, GE, JU, NE, VD, VS, AG, BS, TI. Mixture (physician can choose to self-dispense or not): BE, GR