Related Experiment Video

Updated: Jun 5, 2026

P50 Sensory Gating in Infants
12:55

P50 Sensory Gating in Infants

Published on: December 26, 2013

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.
Abstract

Related Concept Videos

Halo Effect01:27

Halo Effect

The halo effect is a cognitive bias in which an individual's overall impression influences judgments about their specific traits. This psychological phenomenon leads people to associate positive characteristics with those they perceive as generally good and negative characteristics with those they view as bad. This effect is particularly influential in social perception, professional evaluations, and decision-making processes.The Psychological Basis of the Halo EffectThe halo effect is rooted...
Feedback Inhibition00:46

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
Bias01:22

Bias

Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected or encouraged over others in sampling or testing. Bias can occur during any research phase, including study design, data collection, analysis, and publication.
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
Drug Control Governance: Regulatory Bodies and Their Impact01:03

Drug Control Governance: Regulatory Bodies and Their Impact

Drug control governance involves the oversight and regulation of pharmaceuticals to ensure their safety and efficacy while preventing illegal drug use and trafficking. Regulatory bodies, including the US Food and Drug Administration (FDA) and the European Union's European Medicines Agency (EMA), play a central role in this process. These agencies evaluate the safety and efficacy of drugs before they can be marketed. They fund clinical trials and assess the benefits and risks associated with a...
Barriers to Effective Communication I01:30

Barriers to Effective Communication I

A communication barrier is any distortion or interruption during a conversation, resulting in miscommunication of the message. A good communicator should know these barriers and continuously check for the listener's understanding by obtaining feedback.
Communication barriers include the following:
Physiological barriers: They are limitations caused by a person's health condition or disability, such as hearing loss, poor eyesight, illness, or unconsciousness. An example to overcome this barrier...
Understanding Species and Reproductive Barriers01:17

Understanding Species and Reproductive Barriers

A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...