title: Family practices registration networks contributed to primary care research.
abstract: OBJECTIVE
  Family physicians (FP) play a key role in the diagnosis and treatment of health problems in the community and for evidence-based guidance clinical research must be based on primary care data. This paper analyses the state-of-the-art approaches to collection of data and the building of databases in family practice.
  
  
  METHODS
  Experience in the Netherlands in family practice-based research networks (PBRNs) is explored in registering and analyzing primary care data, illustrated with four examples of PBRN studies.
  
  
  RESULTS
  PBRNs bring together practices and FPs with a research interest to collect data and pursue research under routine patient care conditions. This directs research at relevant questions of family practice. Important features of success are practitioners' ownership of data and the use of data in improving care of patients in the participating practices. International standardization of terminology and definitions in the international classification of primary care improves the scientific quality of data recorded in registration networks and PBRNs.
  
  
  CONCLUSIONS
  Through primary care registration networks and PBRNs it is possible to tap-in unselected care of patients and at the same time produce scientifically rigorous data. This enables research that represents the realities of primary care with valid data.
authors.affiliation: Department of Family Medicine, Radboud University Medical Centre, 117 HAG, PO Box 9101, 6500 HB Nijmegen, The Netherlands. C.vanWeel@hag.umcn.nl
authors.forename: Chris
authors.initials: C
authors.lastname: van Weel
authors.forename: Wim
authors.initials: W
authors.lastname: de Grauw
mesh_terms: D019317:Evidence-Based Medicine; D005194:Family Practice; D006302:Health Services Research / Q000458:organization & administration*; D006801:Humans; D009426:Netherlands