Evidence map›Paper›PMID 33118177›Full record

Observational studyHealth services research2020

Primary care quality and cost for privately insured patients in and out of US Health Systems: Evidence from four states.

Ruohua Annetta Zhou, Nancy D Beaulieu, David Cutler

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Health services research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Return on investment of fracture liaison services: a systematic review and analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2024
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Making integration work.Health services research · 2020
    Article
  7. The promise and peril of health systems.Health services research · 2020
    Article
  8. Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Ruohua Annetta ZhouNational Bureau of Economic Research, Cambridge, Massachusetts, USA.ORCID 0000-0002-4518-8532
Nancy D BeaulieuHealth Care Policy, Harvard Medical School, Boston, Massachusetts, USA.ORCID 0000-0003-2388-1376
David CutlerDepartment of Economics, Harvard University, Cambridge, Massachusetts, USA.ORCID 0000-0002-4949-8917
Harvard University · USNational Bureau of Economic Research · US

Funding

PA-20-072, Measuring the Clinical and Economic Outcomes Associated with Delivery Systems: "Are Health Systems Better at Responding to Pandemics?"U19HS024072 · AHRQ · NATIONAL BUREAU OF ECONOMIC RESEARCH · PI CUTLER, DAVID M · 2015 to 2021
$19.8M
AHRQ HHS U19 HS024072
6 · The paper itself

Abstract

objectiveTo characterize physician health system membership in four states between 2012 and 2016 and to compare primary care quality and cost between in-system providers and non-system providers for the commercially insured population. DATA SOURCES: Physician membership in health systems was obtained from a unique longitudinal database on health systems and matched at the provider level to 2014 all-payer claims data from Colorado, Massachusetts, Oregon, and Utah. STUDY

designUsing an observational study design, we compared physicians in health systems to non-system physicians located in the same state and geography on average cost of care (risk-adjusted using the Johns Hopkins' Adjusted Clinical Grouper), five HEDIS quality measures, one measure of developmental screening, and two Prevention Quality Indicator Measures. DATA COLLECTION/EXTRACTION

methodsPatients in commercial health plans were attributed to a primary care physician accounting for the plurality of office visits. A cohort for each quality measure was constructed based on appropriate measure specifications. PRINCIPAL

findingsThe share of physicians in health systems increased steadily from 2012 to 2016 and ranged from 48% in Colorado to 63% in Utah in 2016. Compared to physicians not in a system, system physicians performed similarly on most HEDIS quality metrics compared to non-system physicians. Patients attributed to in-system physicians had about 40% higher rates (P < .05) of Ambulatory Care Sensitive Admissions (measured in admissions per 100 000:921.33 in-system vs 674.61 not-in-system for acute composite; 2540.91 in-system vs 1972.17 for chronic composite In-system providers were associated with $29 (P < .05) higher average per member per month costs (453.37 vs 432.93). Overall, differences in performance by system membership were relatively small compared to differences across states and geography.

conclusionA growing share of physicians is part of a health system from 2012 to 2016. Providers in health systems are not delivering primary care more efficiently than non-system providers for the commercially insured.

Indexed as

FemaleHealth ExpendituresHealth Services ResearchHumansInsurance, HealthPrimary Health CarePrivate SectorQuality Indicators, Health CareQuality of Health Carecohort studiesgeographyhealth care costownershipprimary carequality of health care

Identifiers

PMID33118177
PMCPMC7720710
OpenAlexW3096896731

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.