Table 4.

Models predicting TBI-related mortality.

Model predictor(s)	Rate ratio (95% CI)	Likelihood ratio (df, LRT p-value)
Model 1
Sex (Female = 1)	1.54 (1.24, 1.91)	14.33 (1, 0.0002)
Model 2
Gender score	2.02 (1.02, 4.00)	4.01 (1, 0.0453)
Model 3
Sex (female = 1)	1.49 (1.19, 1.86)	11.50 (1, 0.0007)
Gender score	1.48 (0.73, 3.01)	1.18 (1, 0.28)

CI: confidence interval; LRT: Likelihood-Ratio Test; df: degrees of freedom. Poisson survival models using binary sex and continuous gender score (1 is more woman-like vs. 0 is more man-like) for test set with N = 4389.