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Table 5 Adverse outcomes in the two groups

From: Postoperative differences between colonization and infection after pediatric cardiac surgery-a propensity matched analysis

  Before propensity matching After propensity matching
  Infection (n = 179) Colonization (n=253) Infection (n=141) Colonization (n=141)
Variable Mean/N SD/% Mean/N SD/% p-value Mean/N SD/% Mean/N SD/% p-value
Hospital days 26.1 12.5 19.7 8.4 <0.001 25.9 13.11 21.3 9.1 0.002
Mortality 10 6% 19 8% 0.431 7 5% 14 10% 0.06
Dialysis 41 23% 27 11% 0.001 23 16% 22 16% 0.31
Pulmonary 80 45% 53 21% <0.001 57 40% 36 26% 0.01
Cardiac 100 56% 89 35% <0.001 74 52% 65 46% 0.32
Cyanosis 50 28% 63 25% 0.48 43 30% 36 26% 0.41
Postop. Reoperation 35 20% 18 7% <0.001 26 18% 16 11% 0.13
ICU stay (day) 10.4 7.56 6.3 5.3 0.001 10 7.42 7.9 6.21 0.006
Extubation time (day) 213.7 202.4 97.9 149.2 <0.001 184.8 168.3 132 157.1 0.006
  1. Data are presented as the number of occurrences and the percentage or as the mean and standard deviation (SD) for categorical and continuous variables, respectively. For categorical variables, the p-values are based on two-sided chi squared or Fischer’s exact tests (as appropriate), comparing the infection patients to the colonization patients. For continuous variables, the p-values are based on a t-test or Wilcoxon rank sum test. Statistically significant (p < 0.05) values are presented in bold. ICU: intensive care unit.