Effect of transcutaneous electrical acupoint stimulation at Zusanli and Neiguan on postoperative recovery in patients with colorectal cancer

Table 1 Comparison of patient demographics and surgical parameters between groups

	Group G (n = 58)	Group TG (n = 66)	t/χ2	P value
Age (years)	60.36 ± 10.58	58.69 ± 9.21	1.012	0.314
Gender (male/female)	32/26	38/28	0.073	0.788
BMI (kg/m2)	24.17 ± 2.45	24.31 ± 2.62	0.792	0.430
Tumor diameter (cm)	3.36 ± 2.37	3.39 ± 2.52	1.146	0.254
TNM stage (I/II/III/IV)	6/33/8/11	12/40/9/6	3.571	0.312
Surgical type (1/2/3/4)1	14/6/21/17	14/10/22/20	0.754	0.861
Operative time (minutes)	166.54 ± 35.02	162.87 ± 33.75	0.340	0.734
Extubation time (minutes)	20.47 ± 5.20	21.06 ± 5.46	0.299	0.766
Blood loss (mL)	75.62 ± 40.31	71.44 ± 37.89	1.544	0.125
Infusion volume (mL)	1432.15 ± 1088.11	1450.28 ± 116.32	1.823	0.071
Urine output (mL)	365.14 ± 55.81	359.31 ± 45.32	1.324	0.188

¹Surgical types - 1: Radical resection for rectal cancer; 2: Radical resection for left colon cancer; 3: Radical resection for right colon cancer; 4: Radical resection for sigmoid colon cancer.

Group G: The general anesthesia group; Group TG: The transcutaneous electrical acupoint stimulation plus general anesthesia group; BMI: Body mass index; TNM: Tumor, node, metastasis.