Effect of hyperthermia combined with opioids on cancer pain control and surgical stress in patients with gastrointestinal cancer

Table 1 Comparison of baseline data between the two groups of patients, n (%)

Baseline information	Group S (n = 35)	Group L (n = 35)	t/χ2	P value
Age (years)	58.54 ± 13.18	59.07 ± 13.76	0.165	0.869
Body mass index (kg/m2)	21.29 ± 1.92	21.18 ± 2.05	0.232	0.817
Sex			0.058	0.810
Male	19 (54.29)	20 (57.14)
Female	16 (45.71)	15 (42.86)
Tumor type			0.279	0.870
Gastric cancer	17 (48.57)	16 (45.71)
Rectum cancer	10 (28.57)	12 (34.29)
Colon cancer	8 (22.86)	7 (20.00)
Tumor pathological grading			0.357	0.550
Stage III	6 (17.14)	8 (22.86)
Stage IV	29 (82.86)	27 (77.14)
Primary tumor diameter (cm)	5.16 ± 1.83	5.31 ± 1.97	0.330	0.742
Main distant metastatic organs
Liver	10 (28.57)	13 (37.14)	0.583	0.445
Lungs	9 (25.71)	11 (31.43)	0.280	0.597
Peritoneum	17 (48.57)	22 (62.86)	1.447	0.229
Lymph node	15 (42.86)	13 (37.14)	0.238	0.626
Degree of cancer pain			0.245	0.621
Moderate	14 (40.00)	12 (34.29)
Severe	21 (60.00)	23 (65.71)