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Established in 1989 as one of the first centers to scale up rigorous research on the impact of nursing on patient outcomes, the Center uses evidence to inform policy and produces the next generation of scientists.

"A strong evidence base shows that better nurse staffing is associated with better patient o..."A strong evidence base shows that better nurse staffing is associated with better patient outcomes.", Dr. Linda H Aiken, CHOPR DirectorPolicy Interventions to Improve Hospital Staffing Webinar Led by Dr. Aiken

NOVEMBER 6, 2019 - 12:00 PM | The International Council of Nurses (ICN) recently concluded that the evidence is sufficient for action to be taken to implement evidence-based staffing in hospitals globally. In this webinar, Dr. Linda Aiken, an international expert on the outcomes of safe nurse staffing, shares new research results from Penn Nursing’s Center for Health Outcomes and Policy Research.


Featured Research Projects

Panel Study of Effects of Changes in Nursing on Patient Outcomes

  • Funded by the National Institute of Nursing Research Study
  • Principal Investigator: Linda H. Aiken, PhD, RN, FAAN, FRCN
  • Supplemental Study: Alzheimer’s Disease and its related Dementias (AD/ADRD)
  • Supplemental Study Principal Investigator: Olga Jarrín, PhD, RN

The Impact of Nursing on In-Hospital Cardiac Arrest Patient Outcomes

Neonatal Intensive Care Unit (NICU) Performance: Missed Nursing Care and Infant Outcomes

Disparities in the Outcomes and Processes of Care for In-Hospital Cardiac Arrest (IHCA): The Role of Differences in the Organization and Delivery of Nursing

Health services research on legislated nurse-to-patient ratios in Queensland, Australia

  • Funded by Queensland Health, Australia
  • CHOPR Principal Investigators: Linda H. Aiken, PhD, RN, FAAN,  Matthew McHugh, PhD, JD, MPH, RN, CRNP, FAAN
  • Partner Institution: Queensland University of Technology 


Featured Publications

“You only have time for so much in 12 hours” unmet social needs of hospitalized patients: A qualitative study of acute care nurses

Journal: Journal  of Clinical Nursing
Authors: Brooks Carthon JM, Hedgeland T, Brom H, Hounshell D, Cacchione PZ

Nurses play a pivotal role in caring for hospitalized patients with social risk factors and preparing them for discharge. Our findings suggest that nurses are able to identify social risk factors. 

Regulation of the nurse practitioner workforce: implications for care across settings

Journal: Journal of Nurse Regulation
Authors: Cimiotti J, Li Y, Sloane DM, Barnes H, Brom HM, Aiken LH

The current shortage of physicians in the U.S. has potential to dramatically limit access to healthcare. Nurse practitioners can provide a cost-effective solution to the shortage. 

Linking the work environment to missed nursing care in labor and delivery (L&D)

Journal: Journal of Nursing Management 
Authors: Lake E, French R, O’Rourke K, Sanders J, Srinivas SK

L&D nurses routinely miss necessary nursing activities. Labouring women’s psychosocial, comfort and educational needs are compromised most often, likely impacting quality and outcomes. 

A methodology for surveying organizational performance: a multistate survey of front-line providers.

Journal: Medical Care
Authors: Lasater KB, Jarrín OF, Aiken LH, McHugh MD, Sloane DM, Smith HL.

We review and analyze common ways of surveying hospitals. We describe the approach and results of a double-sampling technique of surveying nurses as informants about hospital quality and performance. 

Registered nurse burnout, job dissatisfaction, and missed care in nursing homes

Journal: Journal of the American Geriatrics Society
Authors: White EM, Aiken LH, McHugh MD

Missed nursing care due to inadequate time or resources is common in nursing homes and is associated with RN burnout and job dissatisfaction. Improved work environments with sufficient staff hold promise for improving care and nurse retention.