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Table 1 Descriptive statistics of patients’ characteristics and interventions (N = 161)

From: Interval changes in ROTEM values during cardiopulmonary bypass in pediatric cardiac surgery patients

  Overall Age Groups pb
90 days or less Older than 90 days to 2 years Older than 2 years
Na Median IQR N Median IQR N Median IQR N Median IQR
Weight (kg) 161 6.4 12.0 42 3.2 0.8 64 6.2 2.8 55 24.0 38.0 < 0.001
Height (cm) 161 65.0 47.0 42 50.3 5.0 64 64.0 10.3 55 127.0 57.0 < 0.001
Age (days) 161 214.0 1324.0 42 9.5 38.0 64 193.5 147.5 55 2649.0 3582.0 < 0.001
Bypass (min) 161 106.0 74.0 42 146.5 64.0 64 87.0 46.0 55 106.0 73.0 < 0.001
Cross clamp time (min) 140 62.0 49.5 42 82.5 56.0 52 55.5 38.0 46 58.5 46.0 0.053
Regional low flow perfusion (min) 24 102.0 66.5 22 114.5 57.0 2 31.5 55.0 0 0.0 0.0 0.089
Deep hypothermic circulatory arrest (min) 15 15.0 41.0 12 9.5 38.0 3 27.0 43.0 0 0.0 0.0 0.829
Low temperature (c) 159 29.1 7.2 42 17.8 7.8 64 29.4 3.3 53 30.1 4.6 < 0.001
Intervention I
 Packed red blood cells (mL/kg) 108 62.0 52.0 42 96.5 77.0 62 44.5 23.0 4 13.5 14.5 < 0.001
 Plateletpheresis (mL/kg) 13 23.0 8.0 10 22.0 8.0 3 26.0 12.0 0 0.0 0.0 0.934
 Fresh frozen plasma (mL/kg) 27 24.0 9.0 21 23.0 7.0 5 26.0 8.0 1 6.0 0.0 0.055
Intervention II
 Plateletpheresis (mL/kg) 95 38.0 29.0 40 56.0 17.5 54 29.5 12.0 1 18.0 0.0 < 0.001
Intervention III
 HFC (mg/kg) 129 70.0 2.0 40 70.0 1.0 58 70.0 2.0 31 68.0 7.0 < 0.001
Intervention IV
 HFC (mg/kg) 45 70.0 1.0 24 70.0 1.0 19 70.0 1.0 2 46.5 47.0 0.229
 Plateletpheresis (mL/kg) 81 13.0 11.0 40 19.0 13.5 40 9.0 3.5 1 5.0 0.0 < 0.001
 Cell saver (mL/kg) 151 17.0 19.0 36 33.0 22.0 62 19.0 9.0 53 5.0 4.0 < 0.001
 Fresh frozen plasma (mL/kg) 22 19.5 13.0 17 20.0 9.0 4 15.5 51.5 1 3.0 0.0 0.226
 Packed red blood cells (mL/kg) 18 20.5 22.0 12 25.0 13.0 4 6.5 10.0 2 8.0 6.0 0.008
 Cryoprecipitate (mL/kg) 2 10.0 0.0 1 10.0 0.0 1 10.0 0.0 0 0.0 0.0 NA
 Phlebotomized blood (mL/kg) 19 10.0 4.0 0 0.0 0.0 0 0.0 0.0 19 10.0 4.0 NA
  1. aN is number of patients received the procedure/blood product. Descriptive statistics excluded patients who did not receive the procedure/product
  2. bp values from Kruskal Wallis test by age groups. When there was no patient in the age group, Mann Whitney U test was applied. If p = NA (Not Available), sample size was too small to perform the test
  3. HFC human fibrinogen concentrate, IQR interquartile range
  4. p values in bold represent statistical significance