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Follow-up Survey Response in Relation to Military Deployments
Claire A Kolaja1,2, Jennifer N Belding3, Sheila F Castañeda2
1Leidos, Inc., San Diego, CA 92106, USA.
Military Medicine
|April 21, 2025
Summary
Deployment during surveys did not significantly impact follow-up response rates in the Millennium Cohort Study. However, deployed service members were more likely to use web surveys.
Area of Science:
- Military health research
- Longitudinal cohort studies
- Occupational health
Background:
- Longitudinal studies are crucial for understanding military occupational exposures and their long-term health impacts.
- Military deployments present challenges for repeated survey data collection.
- Assessing the feasibility of collecting longitudinal data during deployments is essential.
Purpose of the Study:
- To evaluate the impact of deployment on survey response rates over a 3-year period.
- To analyze factors influencing follow-up survey participation in a military cohort.
- To determine the feasibility of collecting longitudinal data from service members in deployed settings.
Main Methods:
- Analysis of data from the Millennium Cohort Study (2001-2013).
- Examined associations between deployment during survey cycles and response likelihood at 3-year follow-up.
- Controlled for military and demographic characteristics.
Main Results:
- Initial bivariate analysis suggested deployed individuals were slightly more likely to respond.
- After adjusting for covariates, this association reversed.
- Deployed responders were more likely to complete web surveys compared to paper surveys.
Conclusions:
- Longitudinal survey data collection is feasible among service members, even during deployments.
- Deployment status influences survey mode preference (web vs. paper).
- Findings support continued longitudinal data collection in military populations.
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