Development of a new score for early mortality prediction in trauma ICU patients: RETRASCORE

Table 3 Multivariable analysis of factors associated with 30-day mortality

Variable	β-coefficients^a	OR (95% CI)	p value	Points
Age groups
< 50		Reference		0
50–65	0.598	1.83 (1.34–2.47)	< 0.001	1
65–75	1.239	4.78 (3.43–6.66)	< 0.001	2
> 75	2.198	10.35 (7.47–14.36)	< 0.001	4
PRECOAG	0.349	1.43 (1.10–1.85)	0.007	1
Pre-hospital intubation	0.336	1.41 (1.08–1.83)	0.012	1
High Risk mechanism	0.662	1.96 (1.56–2.47)	< 0.001	1
PUPILS
Normal		Reference		0
Unilateral mydriasis	0.950	2.63 (1.97–3.51)	< 0.001	2
Bilateral mydriasis	3.217	26.38 (17.51–39.74)	< 0.001	6
GCS ≤ 8	0.841	2.35 (1.79–3.10)	< 0.001	2
MAIS-Head	0.495	1.66 (1.30–2.12)	< 0.001	1
MAIS-Thorax	− 0.271	0.76 (0.60–0.96)	0.026	− 1
Haemodynamic failure	1.148	3.21 (2.51–4.12)	< 0.001	2
Respiratory failure	0.708	2.06 (1.58–2.67)	< 0.001	1
Coagulopathy	0.567	1.78 (1.36–2.33)	< 0.001	1
Mechanical ventilation	0.580	1.80 (1.39–2.34)	< 0.001	1
Massive haemorrhage	0.452	1.58 (1.10–2.27)	< 0.001	1

Logistic regression. Derivation set (n = 5976)
PRECOAG, prior treatment with antiplatelets or anticoagulants; GCS, Glasgow Coma Score; AIS, Abbreviated Injury Scale; MAIS, AIS ≥ 3
^aRegression coefficient multiplied with a shrinkage factor (bootstrapping procedure) of 0.98

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