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Table 1 Baseline patient characteristics

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

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