Table 1 Networks and practice sites in the Canadian Primary Care Sentinel Surveillance Network (1 July 2007–30 June 2012)
Total in NetworkTotal Included in the Study
British Columbia Primary Care Research Network (BCPCReN)British ColumbiaVancouver, University of British Columbia1654116541
Alberta Family Practice Research Network (AFPRN)AlbertaEdmonton, University of Alberta51608314602
Southern Alberta Primary Care Research Network (SAPCReN)AlbertaCalgary, University of Calgary521078216275
Manitoba Primary Care Research Network (MaPCReN)ManitobaWinnipeg, University of Manitoba31682800
Deliver Primary Healthcare Information Project (DELPHI)OntarioLondon, Western University814969814966
University of Toronto Practice Based Research Network (UTOPIAN)OntarioToronto, University of Toronto13344411233148
Eastern Ontario Network (EON)OntarioKingston, Queen’s University21783100
Maritime Family Practice Research Network (MARNET-FP)Nova ScotiaHalifax, Dalhousie University132782300
Atlantic Practice Based Research Network (APBRN)Newfoundland and LabradorSt. John’s, Memorial University of Newfoundland721499411726

Note. Some practice sites and entire networks without any referral information were excluded.

  • a Patients with 2+ visits within a 12+ month period, and no missing data on age and sex.

  • b Sites were required to have >=90% of their referrals with a description of the type of referral being made were included.