Study (2012) 2010-2011. Iraq or Afghanistan () between 2001-2009. N=14,032 (53% response rate). MEAO Prospective Members of ADF from 13 and post-deployment Pre-deployment lifetime Overall 23.3% Respondents on a Prospective cohort units and a ship who self-report questionnaire mTBI combat role in Study 2010-2012. deployed to the MEAO data. mTBI referred to an Afghanistan or who Post-deployment new Overall 9.3% (2012) () after June 2010 and event in which the head worked outside the mTBI returned by June 2012. was physically injured, and main support base Pre-deployment mTBI 3.6% N=1295. was characterised by the were significantly immediate symptoms of and post-deployment more likely to report LOC, altered mental a new mTBI at new mTBI status, and/or amnesia compared to in non-combat roles outside Afghanistan 1990-91 Gulf War Australia – Australian Longitudinal Australian Gulf War Respondents were to Gulf War Comparison Gulf War follow-up study. veterans (N=715) and a report whether any injuries Group Veterans’ 2011-2012. non-deployed received in the past three Dazed/Confused 8.6% 6.3% Follow-up comparison group years involved being Health Study Knocked Out 3.1% 1.9% (2011-2012) (N=675). dazed, confused or seeing Not remembering injury 2.3% 1.4% () stars; not remembering the Gulf War veterans were statistically significantly more likely than the injury; or losing comparison to report at least one of the three concussion-related consciousness (knocked consequences of injury (11% vs 7%; p=0.013). out).
Study (2012) () 2010-2011. Iraq or Afghanistan between 2001-2009. N=14,032 (53% response rate). MEAO Prospective Study (2012) () Prospective cohort 2010-2012. Members of ADF from 13 units and a ship who deployed to the MEAO after June 2010 and returned by June 2012. N=1295. and post-deployment self-report questionnaire data. mTBI referred to an event in which the head was physically injured, and was characterised by the immediate symptoms of LOC, altered mental status, and/or amnesia Pre-deployment lifetime mTBI Overall 23.3% Respondents on a combat role in Afghanistan or who worked outside the main support base were significantly more likely to report a new mTBI at compared to in non-combat roles outside Afghanistan Post-deployment new mTBI Overall 9.3% Pre-deployment mTBI and post-deployment new mTBI 3.6% 1990-91 Gulf War – Australia Australian Gulf War Veterans’ Follow-up Health Study (2011-2012) () Longitudinal follow-up study. 2011-2012. Australian Gulf War veterans (N=715) and a non-deployed comparison group (N=675). Respondents were to report whether any injuries received in the past three years involved being dazed, confused or seeing stars; not remembering the injury; or losing consciousness (knocked out). Gulf War Comparison Group Dazed/Confused 8.6% 6.3% Knocked Out 3.1% 1.9% Not remembering injury 2.3% 1.4% Gulf War veterans were statistically significantly more likely than the comparison to report at least one of the three concussion-related consequences of injury (11% vs 7%; p=0.013).
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