Trial Outcomes & Findings for Gulf War Era Cohort and Biorepository (NCT NCT01803854)
NCT ID: NCT01803854
Last Updated: 2025-07-29
Results Overview
Use of VHA for health care in the past year
ACTIVE_NOT_RECRUITING
1275 participants
20 months
2025-07-29
Participant Flow
During the pilot study (September 2014 through May 2016), recruitment materials were mailed to veterans from the stratified recruitment panel and those who self-nominated.The GWECB final enrollment included 1,275 "fully enrolled" veterans who completed all study requirements: 3 consenting documents, the GWECB survey, and a blood sample.
Participant milestones
| Measure |
Gulf War Era Veterans
All Veterans who served in the uniformed services during 1990-1991 who signed consent forms, completed a survey, and provided a blood sample are included in the cohort.
|
|---|---|
|
Overall Study
STARTED
|
1275
|
|
Overall Study
COMPLETED
|
1275
|
|
Overall Study
NOT COMPLETED
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
23 participants were missing sex data.
Baseline characteristics by cohort
| Measure |
Gulf War Era Veterans
n=1275 Participants
All Veterans who served in the uniformed services during 1990-1991 who signed consent forms, completed a survey, and provided a blood sample are included in the cohort.
|
|---|---|
|
Age, Continuous
|
54.6 years
STANDARD_DEVIATION 8 • n=1275 Participants
|
|
Age, Customized
Age group · ≤49
|
460 Participants
n=1275 Participants
|
|
Age, Customized
Age group · 50-59
|
484 Participants
n=1275 Participants
|
|
Age, Customized
Age group · 60-69
|
278 Participants
n=1275 Participants
|
|
Age, Customized
Age group · ≥70
|
53 Participants
n=1275 Participants
|
|
Sex: Female, Male
Female
|
285 Participants
n=1252 Participants • 23 participants were missing sex data.
|
|
Sex: Female, Male
Male
|
967 Participants
n=1252 Participants • 23 participants were missing sex data.
|
|
Race/Ethnicity, Customized
White
|
922 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Black/African-American
|
270 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
American Indian/Alaska Native
|
56 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Asian/Pacific Islander
|
17 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Other Race
|
45 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Missing Race Data
|
32 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Not Spanish, Hispanic, or Latino
|
1112 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Spanish, Hispanic, or Latino
|
113 participants
n=1275 Participants
|
|
Race/Ethnicity, Customized
Missing Ethnicity Data
|
50 participants
n=1275 Participants
|
PRIMARY outcome
Timeframe: 20 monthsPopulation: Twelve participants did not respond to the survey questions used to determine VHA user status.
Use of VHA for health care in the past year
Outcome measures
| Measure |
VHA Health Care Utilization
n=1263 Participants
Use of VHA for health care in the past year
|
|---|---|
|
VHA Health Care Utilization
Non-user
|
679 Participants
|
|
VHA Health Care Utilization
User
|
584 Participants
|
PRIMARY outcome
Timeframe: 20 monthsPopulation: Please note that the survey question pertaining to this characteristic allowed for more than one response (e.g., "check all that apply"); thus, the numbers sum to more than 1275 responses.
Deployment in support of 1990-1991 Gulf War
Outcome measures
| Measure |
VHA Health Care Utilization
n=1275 Participants
Use of VHA for health care in the past year
|
|---|---|
|
Deployment
Deployed to the Gulf
|
900 participants
|
|
Deployment
Did not deploy
|
276 participants
|
|
Deployment
Deployed elsewhere
|
95 participants
|
|
Deployment
Missing data
|
21 participants
|
Adverse Events
Gulf War Era Veterans
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Christina D. Williams, Acting Director of Cooperative Studies Program Epidemiology Center Durham
Department of Veterans Affiairs, Office of Research and Development
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place