Retrospective analysis on Lou Bei Er Chen decoction and acupuncture in gastroesophageal reflux disease post-gastric cancer surgery

Table 1 Comparison of clinical data of patients, n

	Observation (n = 67)	Control (n = 61)	χ2/t/Z	P value
Age, years	44.35 ± 14.25	48.77 ± 11.96	1.89	0.06
Male, n (%)	47 (70.15)	46 (75.41)	0.44	0.50
BMI, kg/m2	22.46 ± 2.72	22.00 ± 2.28	1.03	0.30
Disease course, months	21.98 ± 8.00	19.40 ± 8.04	1.82	0.07
Tumor staging			2.30	0.51
I	13	11
II	25	20
III	23	19
IV	6	11
Surgical methods			0.05	0.98
Proximal gastrectomy	2	2
Total gastrectomy	22	19
Distal gastrectomy	43	40

BMI: Body mass index.