Please assess the completion status of the following clinical trial:

Trial Title: Role of NSI in Differentiating Between Mild Traumatic Brain Injury And Behavioral Health Conditions

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: RETROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion criteria for all groups includes:~* Veteran must be between the ages of 18 to 60~* Veteran must have at least one OEF/OIF deployment~* Veteran must have received an OEF/OIF TBI 2nd Level Evaluation though the VA ECHCS TBI Clinic~Specific inclusion/exclusion criteria for each group are as follows:~Inclusion Criteria:~Group 1: (Both) Co-Occurring PTSD and target, service-related, mTBI~PTSD:~* Clinician confirmed PTSD diagnosis and continuous documentation of symptoms related to PTSD diagnosis within 1 year prior to being seen in the TBI Clinic, or~* Clinician confirmed PTSD diagnosis within 1 year prior to being seen in the TBI Clinic, or~* Clinician confirmed PTSD diagnosis within 60 days after being seen in TBI Clinic~* Target, service-related, mTBI~* Veterans with clinician confirmed target, service-related, mTBI per OEF/OIF TBI 2nd Level Evaluation Consult Report note in EMR~Group 2: (mTBI only) History of target, service-related, mTBI but with no diagnosis of PTSD~* PTSD:~* Veterans with no history of clinician confirmed PTSD diagnosis, or~* Veterans with previous clinician confirmed PTSD diagnosis , but without continuous documentation of PTSD symptoms within 1 year prior to being seen in the TBI clinic~* Target, service-related, mTBI~* Veterans with clinician confirmed target, service-related, mTBI per OEF/OIF TBI 2nd Level Evaluation Consult Report note in EMR~Group 3: (PTSD only) No history of target, service-related, mTBI but with a diagnosis of PTSD~* PTSD:~* Clinician confirmed PTSD diagnosis and continuous documentation of symptoms related to PTSD diagnosis within 1 year prior to being seen in the TBI Clinic, or~* Clinician confirmed PTSD diagnosis within 1 year prior to being seen in the TBI Clinic, or~* Clinician confirmed PTSD diagnosis within 60 days of being seen in TBI Clinic~* TBI:~* Veterans with no history of clinician confirmed diagnosis of target, service-related, mTBI~* Veterans with clinician confirmed mTBI prior to service and without continuous documentation of related symptoms within 1 year of being seen in the TBI Clinic~Group 4: (Neither) No history of target, service-related, mTBI and no diagnosis of PTSD~* PTSD:~* Veterans with no history of clinician confirmed PTSD diagnosis, or~* Veterans with previous clinician confirmed PTSD diagnosis , but without continuous documentation of PTSD symptoms within 1 year of being seen in the TBI clinic~* TBI:~* Veterans with no clinician confirmed diagnosis of target, service-related, mTBI~Exclusion Criteria:~* Those not meeting inclusion criteria as listed above, and~* Veterans with any history of clinician confirmed moderate or severe TBI, and~* Veterans with no NSI in TBI Consult Report note in EMR~* Veterans with documentation of any neurological event or disorder other than mTBI~* Veterans with positive brain imaging

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- OEF/OIF Veterans (Type: None): Operation Enduring Freedom (OEF)/Operation Iraqi Freedom (OIF) Veterans

Based on this trial design, predict the completion outcome and termination type (if applicable).