Clinical and Oncological Value of Preoperative BMI in Gastric Cancer Patients: A Single Center Experience

Table 1

Clinicopathological features of normal (BMI < 25 kg/m²), overweight (BMI 25–30 kg/m²), and obese (BMI ≥ 30 kg/m²) patients.

	Total	Group A		Group B		Group C		value
Patient ()	378	218		121		39
BMI (median)	24.03	22.05		27.00		31.62		<0.001
Age, y (median)	66	67.2		67		63		0.111 (Kruskal)
Sex (male, female)	223 : 155	116 : 102		84 : 37		23 : 16		0.015 ()
Diabetes (yes, no)	51 : 319	23 : 192		15 : 101		13 : 26		<0.001 ()
Missing	8
pT								0.945 ()
1a	42	25	11.5%	13	10.7%	4	10.3%
1b	30	17	7.8%	10	8.3%	3	7.7%
2	53	25	11.5%	23	19.0%	5	12.8%
3	72	44	20.2%	21	17.4%	7	17.9%
4a	162	94	43.1%	50	41.3%	18	46.2%
4b	18	12	5.5%	4	3.3%	2	5.1%
Missing	1	1	0.5%
pN								0.132 ()
0	136	81	37.2%	45	37.2%	10	25.6%
1	39	16	7.3%	15	12.4%	8	20.5%
2	51	35	16.1%	12	9.9%	4	10.3%
3a	72	35	16.1%	28	23.1%	9	23.1%
3b	78	49	22.5%	21	17.4%	8	20.5%
Missing	2	2	0.9%
Tumor site								0.514 ()
Upper third	53	28	12.8%	17	14.0%	8	20.5%
Middle third	104	57	26.1%	39	32.2%	8	20.5%
Lower third	193	113	51.8%	59	48.8%	21	53.8%
Diffuse	16	10	4.6%	5	4.1%	1	2.6%
Gastric stump	10	9	4.1%	0		1	2.6%
Missing	2	1	0.5%	1	0.8%	0
Lauren								0.318 ()
Diffuse	104	65	29.8%	24	19.8%	15	38.5%
Intestinal	227	126	57.8%	82	67.8%	19	48.7%
Mixed	35	20	9.2%	11	9.1%	4	10.3%
Missing	12	7	3.2%	4	3.3%	1	2.6%
Morbidity								0.803 ()
Yes	114	63	28.9%	38	31.4%	13	33.3%
No	264	155	71.1%	83	68.6%	26	66.7%
Major morbidity								0.696 ()
Yes	87	47	21.6%	31	25.6%	9	23.1%
No	291	171	78.4%	90	74.4%	30	76.9%
Postoperative death								0.263 ()
Yes	14	11	5.0%	2	1.7%	1	2.6%
No	364	207	95.0%	119	98.3%	38	97.4%
Hospital stay, days: median	11	12		12		11		0.356 (Kruskal)
Examined lymph nodes (median)	35	37		33		35		0.059 (Kruskal)
Metastatic lymph nodes (median)	4	4		3		5		0.586 (Kruskal)