Purpose: To systematically review the methodologic rigor of the research on volume and
outcomes and to summarize the magnitude and significance of the association between …

Background. To date, systematic reviews on the relationship between the volume of specific
diagnoses and procedures and patient outcomes have several limitations, including the …

There is considerable evidence that patients undergoing various types of complex
treatments or high-risk surgical procedures have lower mortality rates and otherwise better …

The effect of a greater volume of patients with similar conditions being treated at a hospital
on the outcomes achieved is investigated for almost 500,000 selected surgical and medical …

A growing body of evidence indicates that certain surgical procedures exhibit a “volume-
outcome” relationship in which a higher volume of patients undergoing a particular …

The volume–outcome hypothesis has created a policymaker's dilemma. In 1979, Luft and
colleagues1 reported in the Journal that the number of procedures performed at a hospital …

Background: A large body of literature documents associations between the volume of cases
a hospital or surgeon treats and clinical outcomes. Most of these studies have used …

Objective To assess the role of process and structural factors in volume–outcome
relationships. Data sources Pubmed electronic database, until March 2014. Study design …

BACKGROUND Improving quality and effectiveness of healthcare is one of the priorities of
health policies. Hospital or physician volume represents a measurable variable with an …

The effect of a greater volume of patients with similar conditions being treated at a hospital
on the outcomes achieved is studied using a variety of categories of patients, 15 surgical …