Variations in Anesthesia Care for Hip Fracture Surgery

February 24, 2025 updated by: Ottawa Hospital Research Institute

Sources of Variation in Anesthesia Care for Hip Fracture Surgery and the Association With Outcomes

The investigators will use health administrative data to examine the variation of anesthesia type for hip fracture surgery, as well as sources of variation and predictors of variation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

To evaluate the sources of variance in utilization of neuraxial anesthesia the investigators will use multilevel multivariable modeling strategies. This will allow identification of sources of variation (hospital, vs physician, vs patient characteristics), as well as identification of independent predictors of neuraxial use at each of these three levels.

The investigators will also evaluate the independent association of hospital level variation in neuraxial use on our outcomes of interest using multilevel multivariable regression.

Study Type

Observational

Enrollment (Actual)

107317

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada, K1Y4E9
        • Ottawa Hospital Research Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

66 years and older (Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

All Ontario residents aged 66 years or older on the day of their emergency hip fracture surgery.

Description

Inclusion Criteria:

  • Had hip fracture surgery
  • Admitted to hospital on a non-elective basis

Exclusion Criteria:

  • Do not hold a valid provincial health insurance account

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Neuraxial anesthesia
Participants in this group will be those who had a spinal or epidural anesthetic without concurrent general anesthesia
Procedure: Neuraxial anesthesia
Other Names:
  • spinal anesthesia
  • epidural anesthesia
General anesthesia
Participants in this group will be those who had general anesthesia, including those who had a general plus a concurrent spinal or epidural anesthetic.
Procedure: General anesthesia

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Number of Participants With All-Cause Mortality at 30-days
Time Frame: Day of surgery to day of death, or up to 30 days, whichever comes first
Day of surgery to day of death, or up to 30 days, whichever comes first

Secondary Outcome Measures

Outcome Measure
Time Frame
Healthcare Costs From the Perspective of the Universal Healthcare System, Using Standardized Methods (Health System Performance Research Network 2013)
Time Frame: Day of surgery to day of death, or 30 days after surgery, whichever comes first
Day of surgery to day of death, or 30 days after surgery, whichever comes first

Other Outcome Measures

Outcome Measure
Time Frame
Hospital Length of Stay
Time Frame: Day of surgery to day of discharge, or up to 365 days, whichever comes first
Day of surgery to day of discharge, or up to 365 days, whichever comes first

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ottawa Hospital Research Institute

Investigators

  • Principal Investigator: Daniel McIsaac, MD,MPH,FRCPC, The Ottawa Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2002

Primary Completion (Actual)

March 1, 2013

Study Completion (Actual)

May 1, 2016

Study Registration Dates

First Submitted

May 17, 2016

First Submitted That Met QC Criteria

May 31, 2016

First Posted (Estimated)

June 1, 2016

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

February 24, 2025

Last Verified

February 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DM2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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