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Table 3 Baseline characteristics of study participants assigned to the ultrasound-assisted or the conventional puncture group to peripheral intravenous catheterization

From: A randomized controlled trial of ultrasound-assisted technique versus conventional puncture method for saphenous venous cannulations in children with congenital heart disease

  ultrasound-assisted group . conventional puncture group P-value
Age (month) 7(5–9) 7(4–9) 0.445
Sex (male/female) 48/24 43/29 0.449
BMI (kg/cm2) 16.31 + 1.94 16..56 + 2.24 0.186
Previous history of difficult access, %(Y/N) 15.3%(11/61) 16.7%(12/60) 0.803
Comorbidity, %(Y/N) 13.9%(10/62) 5.6%(4/68) 0.114
Venous grading(I/II/III) 5/13/54 4/11/57 0.509
  1. BMI body mass index