Table 3

Ability of screening tools to predict PTSD symptom scale (severity)

Univariable linear regressionMultivariable linear regression (R2=0.111)
Beta estimate (95% CI)P valueBeta estimate (95% CI)P value
Age (years)−0.046 (−0.206 to 0.114)0.567−0.061 (−0.236 to 0.113)0.484
Gender−3.140 (−10.516 to 4.235)0.397−3.718 (−11.787 to 4.350)0.359
ISS0.035 (−0.517 to 0.588)0.8990.058 (−0.481 to 0.597)0.83
Initial question5.047 (0.833 to 9.260)0.025.012 (0.268 to 9.757)0.039
Univariable linear regressionMultivariable linear regression (R2=0.312)
Age (years)−0.046 (−0.206 to 0.114)0.567−0.034 (−0.188 to 0.120)0.659
Gender−3.140 (−10.516 to 4.235)0.397−3.426 (−10.511 to 3.658)0.336
ISS0.035 (−0.517 to 0.588)0.8990.068 (−0.406 to 0.542)0.775
NSESSS-1 (3–5 days)8.095 (4.634 to 11.556)0.0000188.480 (4.712 to 12.247)0.000038
Univariable linear regressionMultivariable linear regression (R2=0.391)
Age (years)−0.046 (−0.206 to 0.114)0.567−0.064 (−0.228 to 0.100)0.433
Gender−3.140 (−10.516 to 4.235)0.3973.554 (−11.574 to 2.826)0.226
ISS0.035 (−0.517 to 0.588)0.8990.200 (−0.270 to 0.669)0.394
NSESSS-2 (2–4 weeks)9.954 (5.758 to 14.151)0.00002110.134 (5.317 to 13.881)0.000066
  • ISS, Injury Severity Score; NSESSS, National Stressful Events Survey Acute Stress Disorder Scale; PTSD, post-traumatic stress disorder.