Table 1.

Characteristics of control and study groups.

	Gastric cancer group	Colorectal cancer group	Malignant group	Control group
n	25	19	44	25
Sex m/f	16/9	13/6	29/15	12/13
Age (year)	58 (34–80)	59 (33–80)	58 (33–80)*	38 (22–67)*
Body mass index (kg/m2)	22 (17–24)	23 (16–25)	22 (16–25)**	25 (21–28)**
Weight loss percentage (%)	7.8 (5.3–23.8)	8.4 (5.2–19)	8.1 (5.2–23.8)	------
Leptin (ng/ml)	1.8 (0.1–12)	1.9 (0.2–11)	1.8 (0.1–12)***	3 (2.5–13)***

Data were reported as median and range. *p < 0.001 **p = 0.008 ***p = 0.002