Table 1 Demographic data and patients characters

Age (years)

68 [58.5–76]

Female/Male ratio

33/27

Height (cm)

168 [162–178]

BMI (kg/m)²

26 [23–28]

Mallampati class I/II/III

32/27/1

Thyromental distance (mm)

6 [5–6.5]

ASA score I/II/III

12/26/22

LTS-D Size 3/4/5

4/45/11

Surgical duration (min)

38 [21–62]

Propofol Induction doses (mg)

200 [150–220] (mean 2.5 mg.kg⁻¹)

Sufentanil Induction doses (mcg)

10 [10–15] (mean 0.17 mcg.kg⁻¹)