. Author manuscript; available in PMC: 2023 Sep 18.

Published in final edited form as: J Safety Res. 2023 Jul 31;86:245–252. doi: 10.1016/j.jsr.2023.07.003

Appendix B.

Negative binomial regression Models: Association between social vulnerability index (SVI) metrics^a and age-adjusted unintentional fatal injury rates^b (per 100,000 population)^c– United States

SVI metric	IRR	SE	95% CI
Overall SVI	1.37^*	0.28	(1.32, 1.43)
Domain 1 Socioeconomic Status	1.52^*	0.04	(1.43, 1.60)
Domain 2 Household Composition and Disability	1.16^*	0.03	(1.11, 1.22)
Domain 3 Minority Status and Language	0.80^*	0.02	(0.77, 0.84)
Domain 4 Housing Type and Transportation	0.93	0.02	(0.89, 0.98)

p < 0.001.

Notes: IRR: incidence rate ratio; CI: confidence intervals; SE: standard error.

Overall SVI and the four SVI domains were defined and calculated by Centers for Disease Control and Prevention/Agency for Toxic Substances and Disease Registry.

Age-adjusted rates per 100,000 population were calculated using the direct method and the 2000 U.S. standard population.

Data for SVI from 2018; Data for fatal injury from 2015–2019.