Evidence map›Paper›PMID 16033497›Full record

ArticleHealth services research2005

More may be better: evidence of a negative relationship between physician supply and hospitalization for ambulatory care sensitive conditions.

James N Laditka, Sarah B Laditka, Janice C Probst

Abstract readMulticenter Study
In one paragraph

Article in Health services research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

80 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. Observational
  9. The impact of ambulatory care spending, continuity and processes of care on ambulatory care sensitive hospitalizations.The European journal of health economics : HEPAC : health economics in prevention and care · 2022
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20 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

James N LaditkaDepartment of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC 29208, USA.
Sarah B Laditka
Janice C Probst

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo conduct an empirical test of the relationship between physician supply and hospitalization for ambulatory care sensitive conditions (ACSH). DATA SOURCES/STUDY

settingA data set of county ACSH rates compiled by the Safety Net Monitoring Initiative of the Agency for Healthcare Research and Quality (AHRQ). The analytical data set consists of 642 urban counties and 306 rural counties. We supplemented the AHRQ data with data from the Area Resource File and the Environmental Protection Agency. STUDY

designOrdinary least squares regression estimated ACSH predictors. Physician supply, the independent variable of interest in this analysis, was measured as a continuous variable (MDs/100,000). Urban and rural areas were modeled separately. Separate models were estimated for ages 0-17, 18-39, and 40-64. DATA EXTRACTION

methodsData were limited to 20 states having more than 50 percent of counties with nonmissing data. PRINCIPAL

findingsIn the urban models for ages 0-17, standardized estimates indicate that, among the measured covariates in our model, physician supply has the largest negative adjusted relationship with ACSH (p<.0001). For ages 18-39 and 40-64, physician supply has the second largest negative adjusted relationship with ACSH (p<.0001, both age groups). Physician supply was not associated with ACSH in rural areas.

conclusionsPhysician supply is positively associated with the overall performance of the primary health care system in a large sample of urban counties of the United States.

Indexed as

Ambulatory CareHealth Services AccessibilityHealth Services MisuseHospitalizationPrimary Health CareAdolescentAdultChildChild, PreschoolHumansInfantInfant, NewbornLeast-Squares AnalysisMedically Underserved AreaMiddle AgedMultivariate Analysis

Identifiers

PMID16033497
PMCPMC1361189

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.