From: Gradual withdrawal of remifentanil delays initial post-operative analgesic demand after thyroid surgery; double-blinded, randomized controlled trial
Remifentanil group
Control group
P value
Age (years)
42.0 ± 10.3
44.6 ± 12.2
0.50
Weight (kg)
72.5 ± 13.3
78.1 ± 20.5
0.56
BMI (kg/m2)
26.5 ± 4.7
27.2 ± 5.8
0.91
Gender (F/M)
14 / 1
12 / 2
0.60
ASA score (1/2)
2 / 13
0 / 14
0.48