Point-of-Care Diagnostic Device for Traumatic Pneumothorax: Low Sensitivity of the Unblinded PneumoScan™

Table 3

Patient characteristics. All parameters are presented in relative and absolute values, or as median with 25th/75th percentile. The significant value was calculated with Mann–Whitney Test. Chi-Squared-Test. BMI: Body Mass Index; ISS: Injury Severity Score; AIS: Abbreviated Injury Scale; MAP: midarterial pressure; SpO₂: peripheral oxygen saturation.

Parameter	Total	Non-PTX	PTX
Number	80	86,25% (69)	13,25% (11)
Sex m/f	70%/30%; (56/24)	71%/29%; (49/20)	63,6%/3,4%; (7/4)	.620
Age years	49,0; (31,0/72,7)	50,0; (34,0/61,5)	31,0; (24,0/41,0)	.005
BMI kg/m^2	25,9; (23,6/38,9)	26,2; (24,0/29,1)	23,2; (23,0/28,0)	.227
ISS	12,0; (9,0/22,0)	12,0; (9,0/17,5)	29,0; (20,0/41,0)	.001
AIS-Thorax	2,0; (2,0/2,8)	2,0; (1,0/2,0)	4,0; (3,0/4,0)	.000
Prehospital Intubation ()	13,8% (11)	14,5% (10)	9% (1)	.629
Intubation in time course ()	6,3% (5)	4,3% (3)	18,2% (2)	.078
Heartrate bpm	91,0; (80,0/104,0)	90,0; (79,5/100,0)	104,0; (97,0/114,0)	.012
MAP mmHg	99,0; (91,5/111,3)	101,6; (93.0/112,5)	93,3; (84,0/98,7)	.041
SpO2	99,0; (96,0/100,0)	99,0; (97.0/100,0)	100,0; (96.0/100,0)	.947