Hyperbaric oxygen with muscle relaxation for sleep quality anxiety and depression in post-gastric cancer sleep disorders

Table 1 Comparison of baseline data between the two groups, mean ± SD/n (%)

Feature	Control group (n = 48)	Observation group (n = 48)	t/χ2	P value
Age (years)	64.37 ± 4.03	65.48 ± 4.62	-1.254	0.213
Gender			0.169	0.681
Male	26 (54.17)	28 (58.33)
Female	22 (45.83)	20 (41.67)
Educational level			8.000	0.238
Junior high school	12 (25.00)	12 (25.00)
Vocational school or high school	20 (41.67)	24 (50.00)
College degree or above	16 (33.33)	12 (25.00)
Postoperative time (months)	3.21 ± 0.94	3.14 ± 0.96	0.351	0.727

This table compares baseline characteristics (age, gender, education level, postoperative time) between the control and observation groups using independent t-tests or χ² tests. No statistically significant differences were found (all P > 0.05), indicating that the two groups were comparable at baseline.