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Table 2 Unadjusted and adjusted ORs for service member characteristics predicting service member choice to refer (N = 23,319)

From: Engaging military couples in marital research: does requesting referrals from service members to recruit their spouses introduce sample bias?

Service member characteristics Unadjusted Adjusteda
OR 95% CI AOR 95% CI
Demographics
 Sex
  Male 1.43 (1.33–1.54) 1.36 (1.26–1.48)
  Female 1.00b   1.00b  
 Age (years)
  17–24 1.00b   1.00b  
  25–34 1.05 (0.98–1.12) 0.90 (0.84–0.97)
  35–44 1.04 (0.93–1.17) 0.71 (0.62–0.82)
  > 44 1.25 (0.94–1.67) 0.89 (0.65–1.22)
 Race/ethnicity
  White, non-Hispanic 1.00b   1.00b  
  Black, non-Hispanic 0.66 (0.59–0.74) 0.65 (0.58–0.73)
  Hispanic 0.76 (0.69–0.85) 0.71 (0.64–0.80)
  Other 0.81 (0.73–0.91) 0.83 (0.73–0.93)
 Education
  Less than bachelor’s 1.00b   1.00b  
  Bachelor’s or higher 1.14 (1.07–1.23) 1.23 (1.10–1.37)
 Number of children
  0 1.00b   1.00b  
  1 1.24 (1.15–1.33) 1.22 (1.13–1.31)
  2 1.36 (1.36–1.48) 1.32 (1.21–1.45)
  3 or more 1.66 (1.51–1.84) 1.59 (1.43–1.78)
 Financial problems
  Not bothered 1.00b   1.00b  
  Bothered a little or a lot 1.50 (1.41–1.59) 1.28 (1.20–1.38)
Military characteristics
 Deployment status
  Nondeployed 1.00b   1.00b  
  Deployed without combat 0.86 (0.78–0.96) 0.97 (0.88–1.08)
  Deployed with combat 1.15 (1.08–1.23) 1.10 (1.02–1.18)
 Service branch
  Air Force 0.60 (0.56–0.64) 0.70 (0.65–0.76)
  Army 1.00b   1.00b  
  Marine Corps 0.89 (0.80–0.99) 0.94 (0.84–1.05)
  Navy/Coast Guard 0.89 (0.82–0.97) 1.05 (0.95–1.15)
 Component
  Active duty 1.00b   1.00b  
  Reserve/National Guard 1.24 (1.15–1.33) 1.20 (1.10–1.30)
 Pay grade
  Enlisted 1.00b   1.00b  
  Officer 1.14 (1.06–1.23) 1.09 (0.97–1.23)
Individual health and adjustment
 Mental component score
  Lowest 15th percentile 1.21 (1.11–1.31) 1.02 (0.92–1.13)
  Middle 70th percentile 1.00b   1.00b  
  Highest 15th percentile 0.95 (0.87–1.04) 1.04 (0.95–1.15)
 Physical component score
  Lowest 15th percentile 1.15 (1.06–1.25) 1.05 (0.96–1.14)
  Middle 70th percentile 1.00b   1.00b  
  Highest 15th percentile 0.88 (0.81–0.96) 0.90 (0.82–0.99)
Posttraumatic growth index score (10 units) 1.00 (0.99–1.00) 1.01 (1.00–1.01)
 Difficulties with significant other
  Not bothered 1.00b   1.00b  
  Bothered a little or a lot 1.29 (1.21–1.37) 1.07 (0.99–1.16)
 Caring for others
  Not bothered 1.00b   1.00b  
  Bothered a little or a lot 1.47 (1.38–1.57) 1.20 (1.11–1.30)
 No one to turn to     
  Not bothered 1.00b   1.00b  
  Bothered a little or a lot 1.29 (1.19–1.39) 1.07 (0.97–1.17)
  1. Abbreviations: AOR Adjusted odds ratio, CI Confidence interval, OR Odds ratio
  2. aModel adjusted for all covariates listed in the table
  3. bReference category