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Table 2 Adjusted a odds of enrollment status in the Millennium Cohort Study by panel (2004-2008)

From: The impact of deployment experience and prior healthcare utilization on enrollment in a large military cohort study

 

Panel 2 (2004-2006)

Panel 3 (2007-2008)

N = 141,366b

N = 190,379c

Characteristicd

OR

(95% CI)

OR

95% CI

Deployment experiencee

    

  None

1.00

Ref

1.00

Ref

  Prior to enrollment only

1.11*

1.06, 1.16

1.02

0.99, 1.06

  During enrollment only

1.18*

1.14, 1.22

1.05*

1.02, 1.08

  Prior to and during enrollment

1.08*

1.03, 1.13

1.05*

1.02, 1.09

Sex

    

Male

1.00

Ref

1.00

Ref

Female

1.91*

1.85, 1.97

1.77*

1.73, 1.82

Age (years)

    

  17-20

1.00

Ref

1.00

Ref

  21-22

0.98

0.95, 1.02

1.04*

1.01, 1.08

  23-24

1.19*

1.14, 1.24

1.10*

1.05, 1.14

  >24

1.36*

1.31, 1.42

1.44*

1.38, 1.50

Education

    

  Some college or less

1.00

Ref

1.00

Ref

  Bachelors or higher

1.49*

1.39, 1.60

1.47*

1.38, 1.58

Marital status

    

  Never married

1.00

Ref

1.00

Ref

  Married

1.16*

1.12, 1.20

1.21*

1.18, 1.24

  Divorced, separated, or widowed

1.06

0.96, 1.17

1.10*

1.02, 1.20

Race/ethnicity

    

  White, non-Hispanic

1.00

Ref

1.00

Ref

  Black, non-Hispanic

0.52*

0.50, 0.54

0.64*

0.62, 0.66

  Asian/Pacific Islander

0.98

0.92, 1.04

0.99

0.94, 1.05

  Hispanic

0.79*

0.76, 0.82

0.81*

0.77, 0.84

  Other

1.20*

1.08, 1.33

0.95

0.88, 1.01

Military pay grade

    

  Enlisted

1.00

Ref

1.00

Ref

  Officer

1.48*

1.36, 1.61

1.35*

1.25, 1.45

Service component

    

  Reserve/Guard

1.00

Ref

1.00

Ref

  Active-Duty

1.29*

1.25, 1.33

1.27*

1.24, 1.31

Branch of service

    

  Army

1.00

Ref

1.00

Ref

  Navy/Coast Guard

0.74*

0.71, 0.77

1.06*

1.02, 1.10

  Marine Corps

0.38*

0.36, 0.39

0.80*

0.77, 0.83

  Air Force

1.01

0.98, 1.05

2.30*

2.23, 2.37

Military occupation

    

  Combat specialist

1.00

Ref

1.00

Ref

  Electronic equipment repairer

1.73*

1.64, 1.83

1.80*

1.72, 1.89

  Communications/intelligence

1.57*

1.49, 1.66

1.58*

1.51, 1.66

  Healthcare

1.90*

1.80, 2.00

1.72*

1.63, 1.80

  Other technical and allied

1.67*

1.54, 1.82

1.87*

1.75, 1.99

  Functional support/administration

1.71*

1.63, 1.79

1.83*

1.75, 2.00

  Electrical/mechanical equipment repairer

1.28*

1.22, 1.34

1.44*

1.39, 1.50

  Craft worker

1.32*

1.22, 1.43

1.36*

1.27, 1.45

  Service and supply

1.25*

1.19, 1.31

1.25*

1.19, 1.31

  Students, trainees, other

1.36*

1.27, 1.46

1.69*

1.58, 1.80

  1. OR, odds ratio; CI, confidence interval; Ref, reference category.
  2. *Indicates significance at the P < 0.05 level.
  3. aModels were adjusted for all variables included in the table.
  4. bThere were 8,137 service members excluded due to missing or unknown demographic information.
  5. cThere were 9,292 service members excluded due to missing or unknown demographic information.
  6. dCharacteristics were evaluated at the time each sample was drawn (October 2003 for Panel 2; October 2006 for Panel 3).
  7. eAny deployment experience in support of the operations in Iraq and Afghanistan.
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BMC Medical Research Methodology

ISSN: 1471-2288

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