. Author manuscript; available in PMC: 2018 Mar 1.

Published in final edited form as: J Trauma Acute Care Surg. 2017 Mar;82(3):518–523. doi: 10.1097/TA.0000000000001339

Table 3.

Mangled Extremity Severity Score (MESS) elements compared between patients who underwent amputations and those who did not; before and after adjustment for significant confounders of injury mechanism, arterial transection, arterial injury location, injury severity score (ISS), and concomitant nerve and orthopedic injuries.

MESS Elements	Amputations median (Q1, Q3) (n = 43)	Limb Salvage median (Q1, Q3) (n = 187)	p-value unadjusted	p-value adjusted
Skeletal / soft tissue score	3 (2, 3)	1 (1, 3)	< 0.001	0.50
Limb ischemia	2 (1, 3)	1 (1, 2)	< 0.001	0.79
Shock	0 (0, 1)	0 (0, 1)	0.21	0.20
Age score	1 (0, 1)	1 (0, 1)	0.22	0.22

Total MESS	6 (4, 8)	4 (3, 5)	< 0.001	0.18

MESS = mangled extremity severity score

Q1 = Lower quantile (25^th percentile)

Q3 = Upper quantile (75^th percentile)