. 2022 Jul 8;49:e20223056. doi: 10.1590/0100-6991e-20223056-en

Table 4. Comparison of MEP measurements in the preoperative, 1 ^st postoperative and 2 ^nd postoperative days.

MEP	Group 1 (n=27)	p	Group 2 (n=28)	p
Pre-op	81±19	<0.0001	85±18	0.27
1^st PO	51±15	<0.0001	75±22	0.27
Pre-op	81±19	0.004	85±18	0.60
2^nd PO	65±14	0.004	81±19	0.60
1^st PO	51±15	0.003	75±22	0.18
2^nd PO	65±14	0.003	81±19

MEP: maximum expiratory pressure; Pre-op: preoperative; PO: postoperative.

Table 4. Comparison of MEP measurements in the preoperative, 1 st postoperative and 2 nd postoperative days.