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Table 3 Comparison between patients with pulmonary edema from intervention and control groups of the Optica study

From: Pulmonary edema and blood volume after aneurysmal subarachnoid hemorrhage: a prospective observational study

  Intervention group n = 12 Control group n = 5 Mean difference Adjusted mean difference
Blood volume 58.2 52.0 7.9 9.1
  (53.4 to 63.0) (39.2 to 64.8) (0.7 to 15.1) (-0.9 to 19.1)
Cardiac index 2.5 2.9 -0.5 -0.2
  (2.1 to 2.8) (1.4 to 4.4) (-1.3 to 0.2) (-1.1 to 0.7)
Fluid balance +1.9 +0.7 +1.2 +1.2
  (1.4 to 2.5) (-1.0 to 2.5) (0.1 to 2.3) (-0.2 to 2.6)
  1. Presented are mean values with 95% confidence interval of blood volume (ml/kg), cardiac index (L/min/m2) and fluid balance (L/day). Differences between patients from intervention or control group are adjusted for age, weight, and WFNS grade on admission.
  2. n, numbers of patients.