Published on in Vol 23, No 2 (2021): February

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/28057, first published .
Correction: Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Correction: Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Correction: Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Rebecca Robbins   1, 2 , PhD ;   Mahmoud Affouf   3 , PhD ;   Matthew D Weaver   1, 2 , PhD ;   Mark É Czeisler   4, 5 , AB ;   Laura K Barger   1, 2 , PhD ;   Stuart F Quan   1, 2 , MD ;   Charles A Czeisler   1, 2 , MD, PhD, FRCP

1 Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, United States

2 Division of Sleep Medicine, Harvard Medical School, Boston, MA, United States

3 Department of Mathematics, Kean University, Union, NJ, United States

4 School of Psychological Sciences, Turner Institute Brain and Mental Health, Monash University, Victoria, Australia

5 Institute for Breathing and Sleep, Austin Health, Melbourne, Australia

Corresponding Author:

  • Rebecca Robbins, PhD
  • Division of Sleep and Circadian Disorders
  • Departments of Medicine and Neurology
  • Brigham and Women's Hospital
  • 221 Longwood Avenue
  • Boston, MA, 02115
  • United States
  • Phone: 1 2039792338
  • Email: rrobbins4@bwh.harvard.edu