Table 1.

Demographic Data

Demographic	Group OA (n=40)	Group OFA (n=40)	Mean Difference (95% CI)	P value
Age (yr)	43.8±10.3	44.4±10.1	−0.6(−5.1, 3.9)	0.929
Gender, n (%)
Male	18(51.4)	17(48.6)	–
Female	22(48.9)	23(51.1)	–	0.822
BMI (kg/m2)	23.2±2.4	23.6±1.9	−0.4(−1.3, 0.6)	0.344
ASA physical status, n (%)				0.592
I	8(44.4)	32(51.6)	–
II	10(55.6)	30(48.4)	–

Note: Data are expressed as mean±SD or a number (percentage).

Abbreviations: OA, Opioid-based anesthesia; OFA, Opioid-free anesthesia; BMI, Body Mass Index; ASA, American Society of Anesthesiologists.