From: Effect of electrical impedance-guided PEEP in reducing pulmonary complications after craniotomy: study protocol for a randomized controlled trial
Variables
P6 group
Pi group
P value
Gender (male/female)
Age (years)
Height (cm)
Weight (kg)
BMI (kg/m2)
ASA classification (I–II)
Smoking (cases): never/ever/within 1 month before surgery