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The effects of gatekeeping: a systematic review of the literature
Marcial Velasco Garrido1, Annette Zentner, Reinhard Busse
1Department of Health Care Management, Berlin University of Technology, Berlin, Germany. marcial.velasco@tu-berlin.de
Insights
Physician gatekeeping systems can reduce healthcare utilization and costs, but evidence on their impact on patient health outcomes is limited and inconclusive. Further research is needed to fully understand the effects of this healthcare model.
Area of Science:
- Health Services Research
- Health Economics
- Systematic Review Methodology
Background:
- Physician-centered gatekeeping, where a primary care physician acts as a first point of contact, is a common model in healthcare systems.
- Understanding the impact of this model on health outcomes, healthcare utilization, and costs is crucial for healthcare policy and resource allocation.
Purpose of the Study:
- To systematically review the existing literature on the effects of physician-centered gatekeeping.
- To assess the impact on health, healthcare utilization, and economic outcomes.
Main Methods:
- Systematic literature search of PubMed, EMBASE, and Cochrane Library up to January 2010.
- Inclusion of RCTs, CCTs, cohort studies, CBAs, and interrupted time-series with physician gatekeepers.
- Independent data extraction and quality assessment by two reviewers.
Main Results:
- The review included 26 studies, primarily from the United States.
- Gatekeeping was generally associated with reduced healthcare utilization (up to -78%) and expenditures (up to -80%).
- Significant variability in outcomes and limited data on health and patient-related outcomes were noted.
Conclusions:
- The overall quality of evidence on physician gatekeeping is limited.
- While utilization and cost reductions are suggested, effects on health and patient-reported outcomes are inconclusive.
- Further high-quality research is needed, particularly on patient-centered outcomes.
Objective:
To assess the effects of physician-centred gatekeeping on health, health care utilization, and costs by conducting a systematic review of the literature.
Methods:
Systematic search in PubMed (MEDLINE and Pre-MEDLINE), EMBASE, and the Cochrane Library, from the databases' respective inception dates up to January 2010, using the search words "gatekeeping", "gatekeeper*", "first contact", and "self-referral". We included RCTs, CCTs, cohort studies, CBAs, and interrupted time-series. We included only studies in which the gatekeeper function was exercised by a physician and that reported health and patient-related outcomes including quality of life and satisfaction, quality of care, health care utilization, and/or economic outcomes (e.g. expenditures or efficiency). Selection was made independently by two reviewers and discrepancies were solved by consensus after discussion. Data on target population, intervention, additional interventions, study results, and methodological quality were extracted. Methodological quality was assessed independently by two reviewers following the previously defined criteria. Discrepancies were solved by consensus after discussion.
Results:
This review includes 26 studies in 32 publications. The majority of studies (62%) reported data from the United States and in most gatekeeping was associated with lower utilization of health services (up to -78%) and lower expenditures (up to -80%). However, there was great variability in the magnitude and direction of the differences.
Conclusion:
Overall, the evidence regarding the effects of gatekeeping is of limited quality. Many studies are available regarding the effects on health care utilisation and expenditures, whereas effects on health and patient-related outcomes have been studied only exceptionally and are inconclusive.
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