Clinical significance of preoperative nutritional status in elderly gastric cancer patients undergoing radical gastrectomy: A single-center retrospective study

Table 1 Clinical characteristics of malnourished and well-nourished elderly patients

Factor	Malnourished		Well-nourished		P value	Total
All patients	249	100	534	100		783	100
Age (years)					< 0.001
Median (IQR)	72 (69, 76)		69 (67, 73)			70 (67, 74)
Gender					0.762
Female	65	26.1	134	25.1		199	25.4
Male	184	73.9	400	74.9		584	74.6
Comorbidity					0.321
0-2	221	88.8	486	91.0		707	90.3
≥ 3	28	11.2	48	9.0		76	9.7
Type of anesthesia					0.073
GA	35	14.1	52	9.7		87	11.1
TEA	214	85.9	482	90.3		696	88.9
Type of surgery					0.721
Total gastrectomy	112	45.0	247	46.3		359	45.8
Distal gastrectomy	130	52.2	267	50.0		397	50.7
Proximal gastrectomy	7	2.8	20	3.7		27	3.5
Operation time (min)					0.082
Median (IQR)	160 (126, 189)		160 (129, 191)			160 (123, 189)
Preoperative consultation					0.303
No	202	81.1	449	84.1		651	83.1
Yes	47	18.9	85	15.9		132	16.9
Neoadjuvant chemotherapy					0.647
No	240	96.4	518	97.0		758	96.8
Yes	9	3.6	16	3.0		25	3.2
TNM stage					0.059
I	32	12.9	87	16.3		126	16.1
II	53	21.3	133	24.9		150	19.2
III	164	65.8	314	58.8		507	64.7
Clavien-Dindo classification					< 0.001
None	193	77.5	476	89.1		669	85.4
I + II	27	10.8	37	6.9		64	8.2
III or higher	29	11.7	21	4.0		50	6.4
Cost of hospitalization (× 103 RMB)					0.293
Median (IQR)	55.3 (47.4, 66.6)		54.7 (47.8, 63.2)			54.8 (47.7, 64.7)
Re-admission within 30 days	11	4.4	4	0.7	0.790	15	1.9

GA: General anesthesia; TEA: General anesthesia combined with thoracic epidural block; IQR: Interquartile range.