Evidence map›Paper›PMID 34432769›Full record

ArticleMedical care2021

Value of Nurse Practitioner Inpatient Hospital Staffing.

Linda H Aiken, Douglas M Sloane, Heather M Brom, Barbara A Todd, Hilary Barnes, Jeannie P Cimiotti, Regina S Cunningham, Matthew D McHugh

Open access · greenAbstract read
In one paragraph

Article in Medical care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
11.6field-weighted citation impact, top 1% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

  1. The Patient's Voice in Advanced Practice Nursing: A Qualitative Systematic Review of Lived Experiences.Journal of nursing scholarship : an official publication of Sigma Theta Tau International Honor Society of Nursing · 2026
    Pooled it
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  16. Correlation Descriptive Study on Nurses' Professional Values and Job Satisfaction and the Ethical Climate of the Hospital.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

8 authors at 3 institutions in 1 country.

Linda H AikenCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Douglas M SloaneCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Heather M BromCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Barbara A ToddCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Hilary BarnesCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Jeannie P CimiottiCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Regina S CunninghamCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
Matthew D McHughCenter for Health Outcomes and Policy Research, The University of Pennsylvania School of Nursing.
University of Pennsylvania · USHospital of the University of Pennsylvania · USUniversity of Delaware · US

Funding

ADVANCED TRAINING IN NURSING OUTCOMES RESEARCHT32NR007104 · NINR · UNIVERSITY OF PENNSYLVANIA · PI JACQUELINE MARGO BROOKS CARTHON, EILEEN T LAKE · 1999 to 2026
$11.6M
The Impact of Changes in Nursing Systems and Models of Care on Patient Outcomes: A Panel StudyR01NR014855 · NINR · UNIVERSITY OF PENNSYLVANIA · PI Matthew D. McHugh · 2014 to 2026
$7.5M
NINR NIH HHS R01 NR014855NINR NIH HHS T32 NR007104
6 · The paper itself

Abstract

backgroundEvidence indicates hospitals with better registered nurse (RN) staffing have better patient outcomes. Whether involving more nurse practitioners (NPs) in inpatient care produces better outcomes is largely unknown.

objectiveThe objective of this study was to determine whether the presence of more NPs produces better inpatient outcomes net of RN staffing. RESEARCH

designThis was a 2015-2016 cross-sectional data on 579 hospitals linked from: (1) RN4CAST-US nurse surveys; (2) Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) patient surveys; (3) surgical patient discharge abstracts; (4) Medicare Spending per Beneficiary (MSPB) reports; (5) American Hospital Association (AHA) Annual Survey. Hospitals were grouped according to their NP/beds ratios [<1 NP/100 beds (N=132), 1-2.99 NPs/100 beds (N=279), and 3+ NPs/100 beds (N=168)]. SUBJECTS: RNs randomly sampled nurses from licensure lists yielded 22,273 RNs in study hospitals; discharge data for 1.4 million surgical patients; HCAHPS data for 86% of study hospitals. MEASURES: Mortality, readmissions, lengths of stay, MSPB, patient experience, and quality reported by patients and nurses.

resultsAfter adjustments, patients in hospitals with 3+ NPs/100 beds had lower odds than patients in hospitals with <1 NP/100 beds of 30-day mortality [odds ratio (OR)2=0.76; 95% confidence interval (CI)=0.67-0.82; P<0.001] and 7-day readmissions (OR2=0.90; 95% CI=0.86-0.96; P<0.001), shorter average length of stay (incident rate ratio2=0.92; 95% CI=0.88-0.96; P<0.001) and 5.4% lower average MSPB (95% CI=3.8%-7.1%). Patients and nurses in the hospitals with higher NP/bed ratios were significantly more likely to report better care quality and safety, and nurses reported lower burnout, higher job satisfaction, greater intentions of staying in their jobs.

conclusionsHaving more NPs in hospitals has favorable effects on patients, staff nurse satisfaction, and efficiency. NPs add value to existing labor resources.

Indexed as

InpatientsNursing Staff, HospitalCross-Sectional StudiesHumansNurse PractitionersPatient Reported Outcome MeasuresQuality of Health CareSurveys and QuestionnairesTreatment OutcomeUnited States

Identifiers

PMID34432769
PMCPMC8446318
OpenAlexW3193776983

What OpenQuestion holds

Textmetadata
LicenceTDM
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.