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Table 4 Relationship between PNI 55 and continuous risk factors

From: Impact of the nutritional status of children with congenital heart diseases on the early post-operative outcome

  PNI 55 95 CI P value
< 55, N = 136 patients ≥ 55, N = 123 patients
M SD M SD Lower Upper
Length of ICU stay (days) 12.49 24.12 7.70 9.50 0.325 9.24 0.036
Length of hospital stay (days) 35.96 70.00 24.92 27.20 −1.82 23.91 0.092
Ventilation hours 104.52 247.02 57.99 96.46 0.474 92.58 0.048
Age of patients on admission (weeks) 20.06 32.68 17.14 21.68 −3.88 9.72 0.399
Total NPO days in ICU 3.14 4.25 2.33 3.46 −0.15 1.78 0.099
Days to reach energy RDA 4.96 7.59 4.45 5.70 −1.14 2.16 0.544
% RDA 86.53 39.53 84.61 34.74 −7.40 11.25 0.685
  1. PNI prognostic nutritional index, N number, M mean, SD standard deviation, CI confidence interval, intensive care unit, NPO nil per os, RDA recommended daily allowance, % RDA percentage of total calories based on the RDA for age and sex of each patient for all days in PCICU divided by number PCICU days and then averaged over the number of patients