title: A comparative study of 11 local health department organizational networks.
abstract: BACKGROUND
  Although the nation's local health departments (LHDs) share a common mission, variability in administrative structures is a barrier to identifying common, optimal management strategies. There is a gap in understanding what unifying features LHDs share as organizations that could be leveraged systematically for achieving high performance.
  
  
  OBJECTIVE
  To explore sources of commonality and variability in a range of LHDs by comparing intraorganizational networks.
  
  
  METHODS
  We used organizational network analysis to document relationships between employees, tasks, knowledge, and resources within LHDs, which may exist regardless of formal administrative structure.
  
  
  METHODS
  A national sample of 11 LHDs from seven states that differed in size, geographic location, and governance.
  
  
  METHODS
  Relational network data were collected via an on-line survey of all employees in 11 LHDs. A total of 1062 out of 1239 employees responded (84% response rate).
  
  
  METHODS
  Network measurements were compared using coefficient of variation. Measurements were correlated with scores from the National Public Health Performance Assessment and with LHD demographics. Rankings of tasks, knowledge, and resources were correlated across pairs of LHDs.
  
  
  RESULTS
  We found that 11 LHDs exhibited compound organizational structures in which centralized hierarchies were coupled with distributed networks at the point of service. Local health departments were distinguished from random networks by a pattern of high centralization and clustering. Network measurements were positively associated with performance for 3 of 10 essential services (r > 0.65). Patterns in the measurements suggest how LHDs adapt to the population served.
  
  
  CONCLUSIONS
  Shared network patterns across LHDs suggest where common organizational management strategies are feasible. This evidence supports national efforts to promote uniform standards for service delivery to diverse populations.
authors.affiliation: Department of Biomedical Informatics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA. jacqueline.merrill@dbmi.columbia.edu
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Merrill
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Keeling
authors.forename: Kathleen M
authors.initials: KM
authors.lastname: Carley
mesh_terms: D018672:Community Health Planning / Q000458:organization & administration*; D019058:Community Networks / Q000458:organization & administration*; D003159:Community-Institutional Relations; D003659:Decision Making, Organizational; D006297:Health Services Accessibility; D006302:Health Services Research; D006801:Humans; D009111:Local Government; D011635:Public Health Administration / Q000379:methods*
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