Development and validation of an algorithm using health administrative data to define patient attachment to primary care providers.

"This study was supported by the Innovations Strengthening Primary Health Care through Research (INSPIRE PHC) program, which was funded through the Ontario Ministry of Health and Long-Term Care (MOHLTC). This study was also supported by ICES, which is funded by an annual grant from the MOHLTC. Parts of this material are based on data and information compiled and provided by the MOHLTC and CIHI. The analyses, conclusions, opinions and statements expressed herein are solely those of the authors and do not reflect those of the funding or data sources; no endorsement is intended or should be inferred. Richard Glazier reported receiving grants from CIHR, Ontario SPOR Support Unit and St Michael's Hospital Foundation during the conduct of the study; receiving personal fees from ICES, St Michael's Hospital and University of Toronto and is receiving a portion of income paid by CIHR to ICES. Tara Kiran is supported by the Fidani Chair in Improvement and Innovation at the University of Toronto and by the Canadian Institutes of Health Research and Health Quality Ontario as an embedded clinician researcher. Michael Green is supported by the Brian Hennen Chair in Family Medicine at Queen's University."

"This study was supported by the Innovations Strengthening Primary Health Care through Research (INSPIRE PHC) program, which was funded through the Ontario Ministry of Health and Long-Term Care (MOHLTC). This study was also supported by ICES, which is funded by an annual grant from the MOHLTC. Parts of this material are based on data and information compiled and provided by the MOHLTC and CIHI. The analyses, conclusions, opinions and statements expressed herein are solely those of the authors and do not reflect those of the funding or data sources; no endorsement is intended or should be inferred. Richard Glazier reported receiving grants from CIHR, Ontario SPOR Support Unit and St Michael's Hospital Foundation during the conduct of the study; receiving personal fees from ICES, St Michael's Hospital and University of Toronto and is receiving a portion of income paid by CIHR to ICES. Tara Kiran is supported by the Fidani Chair in Improvement and Innovation at the University of Toronto and by the Canadian Institutes of Health Research and Health Quality Ontario as an embedded clinician researcher. Michael Green is supported by the Brian Hennen Chair in Family Medicine at Queen's University."