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Table 2 Summary statistics stratified by exposure and control groups.

From: A clinical prediction model to identify patients at high risk of hemodynamic instability in the pediatric intensive care unit

  All observations Exposure group Control group
  N = 7052 (970) N = 2945 (235) N = 4107 (735)
Mean age (years) 6.9 (4.3) 6.6 (3.9) 7.1 (4.4)
Mechanically ventilated (%) 39.3 (66.2) 56.1 (85.9) 28.5 (60.4)
Mean PICU LOS (days) 8.2 (6.6) 15.3 (13.5) 3.6 (4.6)
Mortality (%) 3 (4.2) 6 (14.9) 1.1 (1.1)
  1. Values in parentheses correspond to the validation dataset
  2. LOS length of stay, PICU pediatric intensive care unit