title: Patient-physician connectedness and quality of primary care.
abstract: BACKGROUND
  Valid measurement of physician performance requires accurate identification of patients for whom a physician is responsible. Among all patients seen by a physician, some will be more strongly connected to their physician than others, but the effect of connectedness on measures of physician performance is not known.
  
  
  OBJECTIVE
  To determine whether patient-physician connectedness affects measures of clinical performance.
  
  
  METHODS
  Population-based cohort study.
  
  
  METHODS
  Academic network of 4 community health centers and 9 hospital-affiliated primary care practices.
  
  
  METHODS
  155 590 adults with 1 or more visits to a study practice from 2003 to 2005.
  
  
  METHODS
  A validated algorithm was used to connect patients to either 1 of 181 physicians or 1 of 13 practices in which they received most of their care. Performance measures included breast, cervical, and colorectal cancer screening in eligible patients; hemoglobin A(1c) measurement and control in patients with diabetes; and low-density lipoprotein cholesterol measurement and control in patients with diabetes and coronary artery disease.
  
  
  RESULTS
  Overall, 92 315 patients (59.3%) were connected to a specific physician, whereas 53 669 patients (34.5%) were connected only to a specific practice and 9606 patients (6.2%) could not be connected to a physician or practice. The proportion of patients in a practice who could be connected to a physician varied markedly (45.6% to 71.2% of patients per practice; P < 0.001). Physician-connected patients were significantly more likely than practice-connected patients to receive guideline-consistent care (for example, adjusted mammography rates were 78.1% vs. 65.9% [P < 0.001] and adjusted hemoglobin A(1c) rates were 90.3% vs. 74.9% [P < 0.001]). Receipt of preventive care varied more by whether patients were more or less connected to a physician than by race or ethnicity.
  
  
  CONCLUSIONS
  Patient-physician connectedness was assessed in 1 primary care network.
  
  
  CONCLUSIONS
  Patients seen in primary care practices seem to be variably connected with a specific physician, and less connected patients are less likely to receive guideline-consistent care.
  
  
  BACKGROUND
  National Cancer Institute.
authors.affiliation: Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. satlas@partners.org
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Atlas
authors.forename: Richard W
authors.initials: RW
authors.lastname: Grant
authors.forename: Timothy G
authors.initials: TG
authors.lastname: Ferris
authors.forename: Yuchiao
authors.initials: Y
authors.lastname: Chang
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Barry
mesh_terms: D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D003266:Continuity of Patient Care / Q000592:standards; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D008327:Mammography / Q000706:statistics & numerical data; D008329:Managed Care Programs / Q000592:standards; D008404:Massachusetts; D008875:Middle Aged; D010361:Patients / Q000523:psychology; D010817:Physician-Patient Relations; D011320:Primary Health Care / Q000592:standards*; D011787:Quality of Health Care; D055815:Young Adult