Wide Disagreement Between Alternative Assessments of Premorbid Physical Activity: Subjective Patient and Surrogate Reports and Objective Smartphone Data

• Published in: Critical care medicine Vol. 45; no. 10; p. e1036
• Main Authors: Gluck, Samuel, Summers, Matthew J, Goddard, Thomas P, Andrawos, Alice, Smith, Natalie C, Lange, Kylie, Iwashyna, Theodore J, Deane, Adam M
• Format: Journal Article
• Language: English
• Published: United States 01.10.2017
• Subjects: Cohort Studies; Female; Geographic Information Systems; Humans; Intensive Care Units; Male; Middle Aged; Proxy; Self Report; Smartphone; Walking

Surrogate-decision maker and patient self-reported estimates of the distances walked prior to acute illness are subjective and may be imprecise. It may be possible to extract objective data from a patient's smartphone, specifically, step and global position system data, to quantify physical act...