From: Individualized rotation of left double lumen endobronchial tube to improve placement success rate: a randomized controlled trial
Control group
(n = 276)
Individualized group
(n = 280)
P value
Patients ≥ 60 years old
88/114 (77.2%)
101/113 (89.4%)
0.014
Patients < 60 years old
140/162 (86.4%)
155/167 (92.8%)
0.057