Combined use of dexmedetomidine and nalbuphine in laparoscopic radical gastrectomy for gastric cancer

Table 1 Comparison of baseline data between the two groups of subjects

Group	n	Age (yr)	BMI (kg/m2)	Sex, n (%)		ASA grade, n (%)		Smoking	Operation time (min)	Blood loss (mL)	Hypertension, n (%)	Diabetes, n (%)	TNM stage, n (%)
				Male	Female	Grade I	Grade II
A group	80	65.30 ± 7.30	22.88 ± 2.06	43 (53.75)	37 (46.25)	30 (37.50)	50 (62.50)	29 (36.25)	164.80 ± 22.00	87.90 ± 12.40	22 (27.50)	16 (20.00)	18 (22.50)	27 (33.75)	35 (43.75)
B group	80	63.80 ± 8.00	22.59 ± 1.88	35 (43.75)	45 (56.25)	37 (46.25)	43 (53.75)	21 (26.25)	160.50 ± 24.10	91.00 ± 14.20	26 (32.50)	23 (28.75)	24 (30.00)	30 (37.50)	26 (32.50)
t/χ2		1.239	0.930	1.601		1.258		1.862	1.179	-1.471	0.476	1.661	2.343
P value		0.217	0.354	0.206		0.262		0.172	0.240	0.143	0.490	0.197	0.310

BMI: Body mass index; ASA: American Society of Anesthesiologists; TNM: Tumour, node, metastasis.