Variations in Anesthesia Care for Hip Fracture Surgery

Completed

• Conditions: Death; Anesthesia; Hip Fractures
• Interventions: Procedure: Neuraxial anesthesia; Procedure: General anesthesia

• Registration Number: NCT02787031
• Lead Sponsor: Ottawa Hospital Research Institute

Brief Summary

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.

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 Timeline

• Study Start: 2002-04
• Primary Completion: 2013-03
• Study Completion: 2016-05
• Study First Submitted: 2016-05-17
• Study First Submitted QC: 2016-05-31
• Study First Posted: 2016-06-01
• Results First Submitted: 2024-12-16
• Status Verified: 2025-02
• Results First Submitted QC: 2025-02-24
• Last Update Submitted: 2025-02-24
• Results First Posted: 2025-03-17
• Last Update Posted: 2025-03-17

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 107317

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 & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Neuraxial anesthesia	Neuraxial anesthesia	Participants in this group will be those who had a spinal or epidural anesthetic without concurrent general anesthesia
General 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.

Primary Outcome Measures

Name	Time	Method
Number of Participants With All-Cause Mortality at 30-days	Day of surgery to day of death, or up to 30 days, whichever comes first

Secondary Outcome Measures

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

Trial Locations

Locations (1)

Ottawa Hospital Research Institute; 🇨🇦 Ottawa, Ontario, Canada