International Surgical Outcomes Study (ISOS)

Not Applicable

Completed

• Conditions: Elective surgery; Surgery

• Registration Number: ISRCTN51817007
• Lead Sponsor: Queen Mary University of London (UK)

Brief Summary

2016 results in: https://www.ncbi.nlm.nih.gov/pubmed/27799174 2021 India results in https://pubmed.ncbi.nlm.nih.gov/34177172/ (added 29/06/2021)

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2014-01-03
• Study Completion: 2014-07-09
• Last Update Posted: 12 July 2021

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 50000

Inclusion Criteria

All adult patients (aged 18 years or older) undergoing elective surgery in a participating hospital during the seven-day cohort period with a planned overnight stay.

Exclusion Criteria

Patients undergoing emergency surgery, planned day-case surgery or radiological procedures

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To confirm the incidence of 30-day in-hospital complications following elective in-patient surgery.

Secondary Outcome Measures

Name	Time	Method
<br> 1. In-hospital all-cause mortality (censored at 30 days following surgery)<br> 2. Admission to critical care (within 30 days following surgery)<br> 3. Duration of hospital stay (duration of primary hospital stay after surgery)<br>