Variable mean (SD)

PECS group (n = 107)

Control group (n = 122)

P

Age, y

57.36 (12.6)

57.09 (13.0)

0.98

Weight, kg

56.59 (10.1)

56.16 (9.4)

0.69

Height, cm

155 (6.6)

154 (5.6)

0.19

ASA class I, II, III, IV

49, 56, 2, 0

52, 66, 4, 0

Duration of surgery, min

92 (38)

94 (32)

0.32

Duration of Anesthesia, min

130 (41)

132 (35)

0.49

Intraoperative fentanyl consumption, μg

280.37 (44.38)

304.91 (60.35)

0.0011