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Related Experiment Video

Updated: Jan 23, 2026

Objective Nociceptive Assessment in Ventilated ICU Patients: A Feasibility Study Using Pupillometry and the Nociceptive Flexion Reflex

Objective Nociceptive Assessment in Ventilated ICU Patients: A Feasibility Study Using Pupillometry and the Nociceptive Flexion Reflex

Published on: July 4, 2018

Examining the weekend effect across ICU performance metrics.

Louis Faust¹, Keith Feldman¹, Nitesh V Chawla²

¹Department of Computer Science & Engineering, University of Notre Dame, Notre Dame, USA.

Critical Care (London, England)

|June 8, 2019

Summary

The "weekend effect" in hospitals is most pronounced in emergency surgery patients with circulatory diseases, highlighting the need to examine intensive care unit (ICU) performance and clinical factors.

Keywords:

Healthcare Healthcare informatics Weekend effect

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Area of Science:

Healthcare Quality
Medical Research
Intensive Care Unit (ICU) Performance

Background:

The
weekend effect,
a debated association between weekend hospital admissions and increased mortality, has been studied extensively across various patient groups.
Previous research often focused on population characteristics, neglecting underlying factors influencing the effect.
Understanding the weekend effect requires examining factors beyond patient demographics, such as intensive care unit (ICU) performance.

Purpose of the Study:

To investigate the role of ICU performance in the manifestation of the weekend effect.
To move beyond identifying patient cohorts and explore underlying clinical factors contributing to the weekend effect.

Main Methods:

Utilized a comprehensive electronic medical records (EMR) database.
Employed multiple logistic regression to identify patient cohorts exhibiting the weekend effect.
Assessed ICU performance using quality scorecards to compare clinical factors between weekend and weekday admissions.

Main Results:

The weekend effect was most prevalent in emergency surgery patients, particularly those with circulatory diseases (OR 1.53).
Significant differences in clinical factors were observed between weekday and weekend admissions for this cohort.
Key differentiating factors included ventilatory support and night-time discharges.

Conclusions:

The study underscores the importance of considering specific patient cohorts when investigating the weekend effect.
Accounting for variations in clinical factors and ICU performance is crucial for a comprehensive understanding of the weekend effect.