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Table 4 Adjusted Logistic and Negative Binomial Regression Models for Outpatient Care Use

From: Comparison of outpatient health care utilization among returning women and men Veterans from Afghanistan and Iraq

Variables OR (95%CI)* P value IRR(95% CI)** P value
  (N = 1620)   (N = 746)  
Sex     
Men(Ref) 1.00   1.00  
Women 1.47(1.09-1.98) 0.01 1.07(0.90-1.27) 0.4
Race     
White(ref) 1.00   1.00  
Non white 1.22(0.87-1.71) 0.26 0.90(0.75-1.09) 0.26
Unknown 0.61(0.5-0.78) 0.001 0.80(0.67-0.93) 0.01
Mean Age 1.02(1.-1.03) 0.01 1.01(0.99-1.01) 0.13
Marital Status     
Married(Ref) 1.00   1.00  
Single 1.15(0.89-1.46) 0.8 0.87(0.74-0.98) 0.05
Length of service     
<3 years 1.00   1.00  
≥ 3 years 1.00(0.80-1.24) 0.9 1.14(1.00-1.30) 0.05
Have Private Health Insurance 1.44(1.15-1.80) 0.002 0.77(0.67-0.88) 0.001
Having Service Connected Disability     
<30%(Ref) 1.00   1.00  
≥30% 2.73(1.93-3.85) 0.001 1.03(0.88-1.21) 0.69
Service Branch     
Army(Ref) 1.00   1.00  
Navy 0.79(0.54-1.16) 0.3 0.82(0.65-1.03) 0.09
Air force 1.00(0.67-1.50) 0.9 1.52(1.14-2.02 0.004
Marine Corps 0.92(0.67-1.27) 0.64 1.14(0.92-1.41) 0.24
  1. *Logistic regression model for any use el for vs. no use **Negative binomial regression model for rate
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