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Table 1 Baseline characteristics of practicesa

From: Differences in the quality of oral anticoagulation therapy with vitamin K antagonists in German GP practices – results of the cluster-randomized PICANT trial (Primary Care Management for Optimized Antithrombotic Treatment)

Characteristics of practices Intervention (n = 26) Control (n = 26) Total (n = 52)
Practice type
 Single-handed practice, no. (%) 11 (42.3) 11 (42.3) 22 (42.3)
 Shared or group practice, no. (%) 15 (57.7) 15 (57.7) 30 (57.7)
Third-party certification in quality management for medical practices (e.g. QEP), no (%)b 12 (46.2) 17 (65.4) 29 (56.9)
Location of the practice, no. (%)
 Rural (<  20,000 inhabitants) 12 (46.2) 10 (38.5) 22 (42.3)
 Provincial (20,000–100,000 inhabitants) 9 (34.6%) 9 (34.6%) 18 (34.6%)
 Urban (>  100,000 inhabitants) 5 (19.2%) 7 (26.9%) 12 (23.1%)
Panel size, registered patients per quarter, no. (%)c
 500–999 7 (26.9) 1 (3.8) 8 (15.4)
 1000–1499 9 (34.6) 11 (42.3) 20 (38.5)
 1500–1999 7 (26.9) 5 (19.2) 12 (23.1)
  ≥ 2000 3 (11.5) 9 (34.6) 12 (23.1)
Main focus of the practice, no. (%)d
 Cardiology 13 (50%) 13 (50%) 26 (50%)
 Diabetology 13 (50%) 13 (50%) 26 (50%)
 Geriatrics 9 (34.6%) 7 (26.9%) 16 (30.8%)
 Natural medicine 3 (11.5%) 4 (15.4%) 7 (13.5%)
Structured training courses for patients, no. (%) 11 (42.3) 16 (61.5) 27 (51.9)
Characteristics of GPs
 Male gender, no. (%) 18 (69.2) 16 (61.5) 34 (65.4)
 Age, mean (SD) 52.4 (7.7) 49.3 (7.4) 50.9 (7.7)
 Knowledge test on OAC for GPs, points, mean (SD)e 9.9 (1.6) 9.6 (1.5) 9.7 (1.6)
 Years of job experience since medical school, mean (SD) 23.1 (8.1) 20.4 (7.9) 21.8 (8.0)
 Participated in a study in the last 5 years, no. (%)f 8 (30.8) 11 (42.3) 19 (36.5)
Characteristics of healthcare assistants
 Age, mean (SD) 40.4 (11.8) 37.9 (12.4) 39.2 (12.0)
 Years of job experience (including education), mean (SD) 19.3 (10.1) 18.6 (11.7) 19.0 (10.8)
  1. aThis is a slightly different version of the original table from the main study [24]
  2. bThe quality management system QEP (Qualität und Entwicklung in Praxen® [Quality and Development in practices]) was developed by the National Association of Statutory Health Insurance Physicians and regional Associations of Statutory Health Insurance Physicians
  3. cIn Germany, panel size is calculated as the number of patient registrations in a practice over a 3-month period
  4. dPractices may have had more than one focus
  5. eSelf-developed knowledge questionnaire (sum score 0–12) with higher scores indicating greater knowledge about OAC
  6. fIncluding studies conducted by our own Institute and others (e.g., pharmaceutical companies)