Table 2.

Patients’ outcome and distribution of parameters of thorax trauma severity score (TTSS)

TTSS parameters		Outcomes of patients			p value
		Non-hospitalized survivors N = 67	Hospitalized survivors N = 202	Hospitalized non-survivors N = 15
Pleural involvement	No	67	110	0	< 0.001
	Pneumothorax	0	32	0
	Hemothorax or hemo/pneumothorax unilateral	0	49	0
	Hemothorax or hemo/pneumothorax bilateral	0	11	11
	Tension pneumothorax	0	0	4
Lung contusion	No	67	125	0	< 0.001
	Unilobar unilateral	0	27	0
	Unilobar bilateral or bilobar unilateral	0	21	0
	Bilateral < 2 lobes	0	12	0
	Bilateral > 2 lobes	0	17	15
Rib fractures	No	67	156	0	< 0.001
	1–3 fracture ribs	0	26	4
	3–6 fracture ribs	0	8	0
	> 3 bilateral fracture ribs	0	8	6
	Flail chest	0	4	5
PaO2/FiO2	> 400	67	109	0	< 0.001
	300–400	0	40	0
	200–300	0	23	0
	150–200	0	24	0
	< 150	0	6	15
	Total	67	202	15