Measurement is always better than self-report: is it that easy?

Affiliations

¹ Center of Clinical Epidemiology, Institute for Medical Informatics, Biometry and Epidemiology, Medical Faculty, University Duisburg-Essen, Essen, Germany. Electronic address: bernd.kowall@uk-essen.de.
² Center of Clinical Epidemiology, Institute for Medical Informatics, Biometry and Epidemiology, Medical Faculty, University Duisburg-Essen, Essen, Germany; School of Public Health, Department of Epidemiology, Boston University, 715 Albany Street, Talbot Building, Boston, MA 02118, USA.

Comment

Bernd Kowall et al. Sleep Med. 2017 Oct.

. 2017 Oct:38:157.

doi: 10.1016/j.sleep.2017.07.019. Epub 2017 Aug 10.

¹ Center of Clinical Epidemiology, Institute for Medical Informatics, Biometry and Epidemiology, Medical Faculty, University Duisburg-Essen, Essen, Germany. Electronic address: bernd.kowall@uk-essen.de.
² Center of Clinical Epidemiology, Institute for Medical Informatics, Biometry and Epidemiology, Medical Faculty, University Duisburg-Essen, Essen, Germany; School of Public Health, Department of Epidemiology, Boston University, 715 Albany Street, Talbot Building, Boston, MA 02118, USA.

No abstract available

Comment in

Response.
Bianchi MT, Thomas RJ, Westover MB. Bianchi MT, et al. Sleep Med. 2017 Oct;38:160-161. doi: 10.1016/j.sleep.2017.07.017. Epub 2017 Aug 3. Sleep Med. 2017. PMID: 28843388 Free PMC article. No abstract available.

An open request to epidemiologists: please stop querying self-reported sleep duration.
Bianchi MT, Thomas RJ, Westover MB. Bianchi MT, et al. Sleep Med. 2017 Jul;35:92-93. doi: 10.1016/j.sleep.2017.02.001. Epub 2017 Feb 17. Sleep Med. 2017. PMID: 28284821 Free PMC article. No abstract available.