Table 3.

Relation between age and mortality

ISS category	Mortality rate (%)	P value
ISS 1-3 Age <65 years	3/114 (2.6)	0.02*
Age ≥ 65 years	4/25 (16)
ISS 4-8 Age <65 years	1/491 (0.2)	<0.001*
Age ≥ 65 years	15/134 (11.1)
ISS 9-15 Age <65 years	12/917 (1.3)	<0.001*
Age ≥ 65 years	44/369(11.9)
ISS 16-24 Age <65 years	19/895(2.1)	<0.001*
Age ≥ 65 years	69/475(14.5)
ISS 25-75 Age <65 years	194/993(19.5)	<0.001*
Age ≥ 65 years	233/493(47.3)

*statistically significant. ISS = injury severity score.