Comparative assessment of two frailty instruments for risk-stratification in elderly surgical patients: study protocol for a prospective cohort study

Authors’ contributions

DIM- Lead the conception and design of the protocol, drafted and revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. MT – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. GLB – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. PEB – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. SG – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. GH – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. EH – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. AH – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. JJ – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. LT – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. HM – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. KT – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. CvW – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. HY – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. AJF MD, FRCPC, MSc – contributed to conception and design of the protocol, critically revised the manuscript, gave final approval of the manuscript, and is accountable for all aspects of the work, including ensuring that questions of accuracy or integrity are resolved. All authors read and approved the final manuscript.