The Impact of Perioperative Geriatric Care on Outcomes After Elective Noncardiac Surgery
1 other identifier
observational
266,499
1 country
1
Brief Summary
The investigators will conduct a population-based study using health administrative data to evaluate the impact of preoperative geriatric consultation on postoperative outcomes in older patients having elective, non-cardiac surgery
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Apr 2002
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2002
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2016
CompletedFirst Submitted
Initial submission to the registry
November 17, 2016
CompletedFirst Posted
Study publicly available on registry
November 29, 2016
CompletedResults Posted
Study results publicly available
March 17, 2025
CompletedMarch 17, 2025
February 1, 2025
11.9 years
November 17, 2016
November 25, 2024
February 24, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Number of Participants With All-Cause Mortality at 90-days
Death from any cause in the 90 days after surgery
date of surgery to 90 days after surgery
Secondary Outcomes (4)
Patient Safety Event
From surgery to hospital discharge (on average 6 to 7 days)
Hospital Length of Stay
date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
Non-independent Discharge Location
date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
30-day Hospital Readmission
Date of discharge (on average 6 to 7 days) to 30 days after discharge (on average 5 weeks)
Study Arms (2)
Preoperative geriatric consult or assessment
Patients who have a geriatric assessment of consult billed in the 4 months before surgery
No Preoperative geriatric consult or assessment
Patients who do not have a geriatric assessment of consult billed in the 4 months before surgery
Interventions
A preoperative geriatric consult or assessment will be considered to be present if such a consult or assessment is billed by a geriatrician for a patient in the cohort within 4 months preceding surgery. For the primary analysis we will collapse both geriatric consultations and comprehensive geriatric assessments into a single exposure level.
No assessment or consult billed in the 4 months before surgery
Eligibility Criteria
Individuals \>65 years of age on the day of the potential participant's first elective non-cardiac surgery in the study period
You may qualify if:
- \>65
- Resident of Ontario
- Having elective non-cardiac surgery (inpatient admission)
You may not qualify if:
- Residing in a nursing home or long term care facility at baseline
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Ottawa Hospital Research Institute
Ottawa, Ontario, K1Y 4E9, Canada
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Limitations and Caveats
This was an observational study, so we cannot prove causality. Unmeasured confounding is a risk to causal inference, but we were able to control for a large number of confounders, including mortality risk, diagnoses, preoperative healthcare use, and unmeasured hospital-level confounders. We were unable to study all possible pathways, such as improvements in medication appropriateness, that may be attributable to geriatric care.
Results Point of Contact
- Title
- Dr. Daniel McIsaac
- Organization
- The Ottawa Hospital
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 17, 2016
First Posted
November 29, 2016
Study Start
April 1, 2002
Primary Completion
March 1, 2014
Study Completion
November 1, 2016
Last Updated
March 17, 2025
Results First Posted
March 17, 2025
Record last verified: 2025-02
Data Sharing
- IPD Sharing
- Will not share