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Table 1 Baseline demographics and surgical data

From: Alkaline phosphatase activity after cardiothoracic surgery in infants and correlation with post-operative support and inflammation: a prospective cohort study

  No CPB n = 13 CPB n = 29 DSC n = 27 P-value No CPB vs. CPB P-value No CPB vs. DSC P-value CPB vs. DSC
Male 8 (62%) 16 (55%) 18 (67%) ns ns ns
Ethnicity     ns ns ns
   White 9 (69%) 18 (62%) 15 (56%)    
   Hispanic 4 (31%) 10 (34%) 11 (40%)    
   Other 0 (0%) 1 (4%) 1 (4%)    
Age, days 11 (3, 14) 49 (9, 67) 5 (4, 19) < 0.0001 ns < 0.005
Weight, Kg 2.9 (2.5, 3.6) 3.4 (3.1, 4) 3.1 (2.8, 3.4) ns ns <0.01
Aristotle score 8 (7, 8) 10 (7, 11) 12 (10, 15) < 0.05 <0.0001 < 0.005
Bypass time, minutes n/a 130 (94, 176) 167 (153, 198) n/a n/a < 0.05
Cross-clamp time, minutes n/a 86 (61, 113) 76 (56, 93) n/a n/a ns
DHCA time, minutes n/a 0 (0, 0) 22 (0, 35) n/a n/a < 0.01
Single ventricle physiology 3 (23%) 2 (7%) 12 (44%) ns ns < 0.005
Pre-operative steroids 1 (8%) 12 (41%) 23 (85%) < 0.05 < 0.0001 < 0.005
  1. Unless otherwise specified, categorical data are expressed as n (%) and continuous data are expressed as median (25th, 75th percentile). CPB, cardiopulmonary bypass; DSC, delayed sternal closure; DHCA, deep hypothermic circulatory arrest; ns, not significant; n/a, not applicable.