The indicator for whether the participant/subject experienced any period of loss of consciousness (LOC).

Loss of consciousness indicator

GENERAL: No references available TBI: Menon D.K., Schwab K., Wright D.W., Maas A.I. (2010). Demographics and Clinical Assessment Working Group of the International and Interagency Initiative toward Common Data Elements for Research on Traumatic Brain Injury and Psychological Health. Position statement: definition of traumatic brain injury. Arch Phys Med Rehabil. 91(11): 1637-40. DOI: 10.1016/j.apmr.2010.05.017 Carroll L.J., Cassidy J.D., Holm L., Kraus J., & Coronado V.G. (2004). Methodological issues and research recommendations for mild traumatic brain injury: the WHO Collaborating Centre Task Force on Mild Traumatic Brain Injury. Journal of Rehabilitation Medicine, (Suppl. 43), 113-125. Center for Disease Control and Prevention. (2003). Report to Congress on mild traumatic brain injury in the United States: Steps to prevent a serious public health problem. Atlanta: Centers for Disease Control and Prevention. Department of Veterans Affairs Office of Quality and Performance and Department of Defense Quality Management Directorate, U.S. Army Medical Command. (2009). VA/DoD clinical practice guidelines for management of concussion/mild traumatic brain injury. (www.healthquality.va.gov/mtbi/concussion_mtbi_full_1_0.pdf) Mild Traumatic Brain Injury Committee, A. C. o. R. M., Head Injury Interdisciplinary Special Interest Group. (1993). Definition of mild traumatic brain injury. Journal of Head Trauma Rehabilitation, 8(3): 86-87. American Academy of Pediatrics. (1999). The management of minor closed head injury in children. Pediatrics 104: 1407-1415. World Health Organization. (1992). The ICD-10 classification of mental and behavioural disorders: clinical descriptions and diagnostic guidelines. Geneva: World Health Organization. Yeates K.O. & Taylor H.G. (2005). Neurobehavioural outcomes of mild head injury in children and adolescents. Pediatric Rehabilitation, 8(1): 5-16. Ruff R.M., Iverson G.L., Barth J.T., Bush S.S., Broshek D.K., and the NAN Policy and Planning Committee. (2009). Recommendations for Diagnosing a Mild Traumatic Brain Injury: A National Academy of Neuropsychology Education Paper. Archives of Clinical Neuropsychology 24: 3-10.

TBI: Choose one. GENERAL: Choose one. Response is obtained from report by subject/participant or clinician. If subject/participant is clinically monitored, GCS or other assessment tool recommended.

Did participant/subject experience loss of consciousness?