Table 3.

Actual set PEEP and “optimal PEEP” based on EIT advise

	Actual set PEEP	EIT based PEEP advise
Total (n = 39)	11.7 (± 2.6)	11.3 (± 3.1)
Mild ARDS (n = 7)	9.7 (± 1.8)	9.4 (± 2.2)β
Moderate ARDS (n = 21)	12.1 (± 2.6)*	10.9 (± 2.7)
Severe ARDS (n = 11)	12.4 (± 2.8)α	13.3 (± 3.6)γ

*p = 0.032 mild versus moderate

^αp = 0.042 mild versus severe

^βp = 0.023 mild versus severe

^γp = 0.039 moderate versus severe