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Table 3 Risk of suicide among OEF/OIF/OND veterans by unit component and gender

From: Risk of suicide among U.S. veterans who deployed as part of Operation Enduring Freedom, Operation Iraqi Freedom, and Operation New Dawn

Characteristics SMR1 (95% C.I.)2 HR3 (95% C.I.)2
All OEF/OIF 1.42 (1.38, 1.46)   
Unit Component
 Active 1.60 (1.54,1.65) 1.22 (1.14,1.30)
 Reserve/National Guard 1.18 (1.12,1.24) Referent  
Age at Entry to Follow-up4    0.98 (0.97,0.98)
Race (All veterans)
 White 1.39 (1.35,1.44) 1.72 (1.59,1.86)
 Non-White 1.77 (1.64,1.91) Referent  
Marital Status (All veterans)
 Not Married    1.12 (1.05,1.20)
 Married    Referent  
Rank (All veterans)
 Enlisted 1.57 (1.52,1.61) 1.94 (1.69,2.23)
 Officer 0.55 (0.48,0.62) Referent  
Ground Troop (All veterans)
 Yes 1.64 (1.59,1.70) 1.39 (1.30,1.49)
 No 1.07 (1.01,1.13) Referent  
Sex (All veterans)
 Male 1.40 (1.36,1.45) 2.85 (2.47,3.29)
 Female 1.85 (1.60,2.13) Referent  
  1. Note. OEF/OIF/OND refers to veterans of Operation Enduring Freedom, Operation Iraqi Freedom,
  2. and Operation New Dawn
  3. 1 Standardized Mortality Ratio (SMR). Ratio of observed to expected based on US population, all adjusted for age and calendar year. Other adjustments depend on veteran subgroup
  4. 2 95% Confidence Interval (C.I.)
  5. 3 HR = Hazard Ratio of suicide derived from Cox Model that included the covariates, age, race, sex, branch of service, and unit component
  6. 4 Age is included as a continuous variable in Cox Model