Background The certainty that prehabilitation improves postoperative outcomes is not clear.
The objective of this umbrella review (ie systematic review of systematic reviews) was to …

Background A barrier to routine preoperative frailty assessment is the large number of frailty
instruments described. Previous systematic reviews estimate the association of frailty with …

Objective: To compare the accuracy of the modified Fried Index (mFI) and the Clinical Frailty
Scale (CFS) to predict death or patient-reported new disability 90 days after major elective …

Objective Administrative data systems are used to identify hospital-based patient safety
events; few studies evaluate their accuracy. We assessed the accuracy of a new set of patient …

Objective To examine the associations between neuraxial anaesthesia or general anaesthesia
and clinical outcomes, length of hospital stay, and readmission in adults undergoing …

Background and Objectives Frailty leaves older adults vulnerable to adverse health outcomes.
Frailty assessment is recommended by multiple COVID‐19 guidelines to inform care and …

Frailty is a multidimensional syndrome characterized by decreased reserve and diminished
resistance to stressors. People with frailty are vulnerable to stressors, and exposure to the …

Importance Single-center studies identify frailty as a risk factor for 30-day postoperative
mortality. The long-term and population-level effect of frailty on postoperative mortality is, to our …

… , and Daniel McIsaac, Karim Abdulla and Alan Forster contributed to study design. Daniel
McIsaac, … Daniel McIsaac wrote the manuscript, with contributions from Karim Abdulla and Alan …

BACKGROUND: Older patients undergoing emergency general surgery (EGS) experience
high rates of postoperative morbidity and mortality. Studies focused primarily on elective …