A comparison of thoracic or lumbar patient-controlled epidural analgesia methods after thoracic surgery

Table 3 The comparison of visual analog scale (VAS) scores at rest at different time points

Time (hours)	Visual analogue scala-rest		Grup TEA vs. Grup LEA (P)	The comparation intragroup of postoperative TEA (P)	The comparation intragroup of postoperative LEA (P)
Time (hours)	TEA group (n = 57)	LEA group (n = 63)	Grup TEA vs. Grup LEA (P)	The comparation intragroup of postoperative TEA (P)	The comparation intragroup of postoperative LEA (P)
Basal	5.43 ± 1.8	5.36 ± 1.85	0.826	Δ	Δ
2	4.28 ± 1.59	5.33 ± 1.88	0.001^a	< 0.0001^b	< 0.0001^c
4	3.84 ± 1.84	4.84 ± 2.3	0.01^a	< 0.0001^b	< 0.0001^c
8	1.86 ± 1.97	2.84 ± 2.02	0.008^a	< 0.0001^b	< 0.0001^c
16	1.72 ± 1.81	2.49 ± 2.17	0.037	< 0.0001^b	< 0.0001^c
24	1.51 ± 1.72	1.6 ± 1.77	0.768	< 0.0001^b	< 0.0001^c

TEA, thoracic epidural group; LEA, lumbar epidural group; Values mean ± standard deviation.
^aComparation between groups, P < 0.05.
^bComparation to basal value in Grup TEA, P < 0.05.
^cComparation to basal value in Grup LEA, P < 0.05.

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