A traumatic brain injury may result from a violent blow to
the head or when an object pierces the skull and enters the brain
tissue. Has a doctor or other health professional ever told you
that you have suffered a traumatic brain injury (TBI)?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
Yes 35 5.5 1.3 2.9 8.1
No 1066 94.5 1.3 91.9 97.1

Among respondents who ever served on active duty in the
United States Armed Forces, either in the regular military
or in a National Guard or military reserve unit, excluding unknowns and refusals.
 
On Questionnaire Split B
 
ASKED ONLY TO LANDLINE SURVEY RESPONDENTS