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Table 1 Patients’ characteristics

From: Ultrasound guidance and risk for intravascular catheter-related infections among peripheral arterial catheters: a post-hoc analysis of two large randomized-controlled trials

  Non-US (n = 2673) US (n = 356) p value
Sex
 Female 934 (34.9) 137 (38.5) 0.19
 Male 1739 (65.1) 219 (61.5)  
Age, median (IQR) 63 [52; 74] 63 [52.5; 73] 0.98
Reason for ICU admission
 Renal failure 113 (4.2) 17 (4.8) < 0.01
 Shock 920 (34.4) 171 (48)  
 Coma 265 (9.9) 19 (5.3)  
 Other 362 (13.5) 46 (12.9)  
 Respiratory failure 811 (30.3) 78 (21.9)  
 Trauma 202 (7.6) 25 (7)  
No comorbidity 1803 (67.5) 242 (68) 0.84
Chronic renal failure 101 (3.8) 15 (4.2) 0.69
Chronic cardiac failure 154 (5.8) 24 (6.7) 0.46
Diabetes mellitus 175 (6.5) 21 (5.9) 0.64
Chronic respiratory failure 153 (5.7) 11 (3.1) 0.04
Immunosuppression 234 (8.8) 36 (10.1) 0.40
Hematologic neoplasia 119 (4.5) 13 (3.7) 0.49
MV at admission 1912 (71.5) 268 (75.3) 0.14
Vasopressor at admission 1067 (39.9) 99 (27.8) < 0.01
SAPS II score, median (IQR) 50 [37; 65] 54 [41; 68] 0.02
  1. IQR interquartile range, ICU intensive care unit, MV mechanical ventilation, SAPS II score simplified Acute Physiology Score II. In 30 patients, the ultrasound guidance was used > 1 time