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Highly Accessed Letter

Influence of prior sunlight exposure on ICU mortality - does delirium play a role?

Koen Simons*, Mark van den Boogaard, Arjen Slooter and Peter Pickkers

Author Affiliations

departement of Intensive Care, Jeroen Bosch Ziekenhuis, P.O. Box 90153, 5200 ME's Hertogenbosch, The Netherlands

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Critical Care 2012, 16:462  doi:10.1186/cc11497


See related research by Castro et al., http://ccforum.com/content/16/4/R132

Published: 16 November 2012

First paragraph (this article has no abstract)

With interest we read the article by Castro and colleagues exploring the relationship between sunlight exposure and ICU mortality [1]. Interestingly, less daylight exposure prior to ICU admission was associated with a reduction in ICU mortality. While the authors mention the influence of light on the development of delirium, it is also recognized that delirium is an independent risk factor for death [2-4]. However, the authors did not adjust for delirium.