Analgesic Effects of Intra-Articular Bupivacaine/Intravenous Parecoxib Combination Therapy versus Intravenous Parecoxib Monotherapy in Patients Receiving Total Knee Arthroplasty: A Randomized, Double-Blind Trial

Table 1

General characteristics of patients enrolled.

		Control group ()	Bupivacaine group ()
Characteristic	Age (year)	51.2 ± 13.5	53.1 ± 14.8	0.581
	Male gender	9 (56%)	11 (55%)	0.940
ASA status	II	6 (38%)	8 (40%)	0.878
	III	10 (63%)	12 (60%)
Preoperative comorbidities	Hypertension	4 (25%)	6 (30%)	0.519
	Diabetes mellitus	4 (25%)	7 (35%)	0.391
	Asthma	1 (6%)	2 (10%)	0.585
	Old cerebral embolism	1 (6%)	1 (5%)	0.698
	Old myocardial infarction	1 (6%)	1 (5%)	0.698

Continuous variables were described as mean ± standard deviation, and the categorical variable was described as number of events (/%); the remaining parameters were compared using an independent -test, and statistical significance was considered when . Categorical variables were the number of events (); the Chi-square test was used, and events less than 5 were compared with Fisher’s exact test, .