Odds ratios were derived using logistic regression analysis and were adjusted for socio-demographic (age, sex, marital status, educational status) and military (rank, Service, deployment status, role) characteristics that were associated with at least one barrier to care statement and the key variable such as serving status or mental health diagnosis.
The following variables were included in the model: age, rank, previous deployments in dengue-endemic areas, YF/JE vaccination, night guards, skin repellents/permethrin-treated uniforms/bed nets use, and operational versus logistic tasks.
Among screening for a variety of illnesses and injuries, the questionnaire asked currently or in the last week have you had, "Any respiratory infection (e.g. cold, cough, sore throat)?," "Any fever?," as well as demographic variables to include military unit, age, gender, rank, location of deployment and current medications.
HLIS is the CAF's periodic health surveillance survey; its sample consisted of a random sample of Canadian Armed Forces personnel in the Regular Forces component on 28 July 2008, stratified by gender, rank, and recent deployment history.
A stratified (by Gulf deployment, rank and age) random sample was selected of 2931 men who had not responded after two reminders to the same address (ITS-NR), and 925 men whose questionnaire had been returned to us undelivered (ITS-UN).
Additional research is also required to explore respiratory rate differences among age groups, ranks and locations of deployment.
GWI was significantly associated with being in the Army compared with other branches of service, with serving in the enlisted ranks, and with veterans' deployment locations.
With the Global War on Terrorism the brigade has seen two deployments to Iraq to support Operation Iraqi Freedom in 2004, and units within its ranks have seen two deployments to Afghanistan in support of Operation Enduring Freedom, making it one of few brigades to see over 40 months of deployment as of 2009.
Still, some critics on Capitol Hill and among Army recruiters say that tapping into the bank of recruits is a telling sign that the Army is having problems filling its ranks to meet the deployments of more than 120,000 soldiers to Iraq and Afghanistan.
A multivariate negative binomial regression model for self-reported respiratory infection and covariates of age, gender, rank and country of deployment was fit.
