The Effectiveness of Preemptive Thoracic Epidural Analgesia in Thoracic Surgery

Table 4

Postoperative pain score at coughing (VASc) (mean ± SD).

	Group C	Group P	P value
Postoperative 1st hour	4.95±2.01^𝛽	3.15±1.22	0.007
Postoperative 2nd hour	4.40±2.08^𝛼	2.55±1.14	0.004
Postoperative 4th hour	3.50±1.76^∗	2.20±0.95	0.009
Postoperative 6th hour	2.55±1.31	2.10±1.48	0.192
Postoperative 12th hour	2.20±1.54	1.40±0.94	0.108
Postoperative 24th hour	1.60±1.18	1.05±1.05	0.121

𝛽When VASr scores at 1st postoperative hour in Group C were compared with those in Group P.
𝛼When VASr scores at 2nd postoperative hour in Group C were compared with those in Group P.
∗When VASr scores at 4th postoperative hour in Group C were compared with those in Group P.