Impact of retrieved lymph node count on short-term complications in patients with gastric cancer

Table 4 Univariate and multivariate analyses of factors associated with RLN count ≥ 25

Characteristics	Univariate			Multivariate
Characteristics	OR	95% CI	P	OR	95% CI	P
Age ≥ 70	0.873	0.689–1.105	0.259
Gender
Male	1.043	0.828–1.312	0.723
Female
BMI (kg/m²)	0.972	0.944–1.002	0.064
Preoperative comorbidities
Previous abdominal surgery	1.030	0.768–1.380	0.844
Diabetes mellitus	0.960	0.670–1.375	0.822
Hypertension	0.852	0.685–1.059	0.148
Preoperative laboratory data
Serum albumin < 35 g/L	1.484	1.048–2.102	0.026
CRP ≥ 10 g/L	1.195	0.827–1.726	0.343
ASA ≥ 3	0.892	0.725–1.098	0.282
Mode of surgical approach
Laparoscopic	1.282	0.808–2.036	0.292
Open
Type of resection			< 0.001			< 0.001
Total gastrectomy		Reference			Reference
Distal gastrectomy	0.649	0.522–0.807	< 0.001	0.716	0.572–0.896	0.004
Proximal gastrectomy	0.334	0.231–0.485	< 0.001	0.357	0.245–0.519	< 0.001
Operation time	1.001	1.000–1.003	0.086
Blood loss	1.000	1.000–1.001	0.482
Tumor site			0.304
Cardia/fundus		Reference
Body	0.903	0.709–1.148	0.404
Pylorus/antrum	1.119	0.869–1.442	0.382
Tumor invasion (T3–4)	1.613	1.310–1.987	< 0.001	1.299	1.010–1.670	0.042
Lymph node metastasis	1.585	1.286–1.952	< 0.001	1.304	1.018–1.669	0.035
pTNM stage (≥ III)	1.555	1.263–1.914	< 0.001
Lauren subtype			0.082
Intestinal		Reference
Diffuse	1.040	0.536–2.019	0.908
Mixed	1.388	0.709–2.716	0.339
Unknown	1.328	0.677–2.603	0.409

BMI body mass index, CRP C-reactive protein, ASA American Society of Anesthesiologists, RLNs retrieved lymph nodes, OR odds ratio, CI confidence interval

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