Influence of Obesity Parameters on Different Regional Patterns of Lymph Node Metastasis in Papillary Thyroid Cancer

Table 5

Relationship between BSA and different regional lymph node involvement in men.

	Univariate analysis
	Nonobesity (BSA)	Obesity (BSA)	value
Rate of LNM
Rate of total LNM	44 (71.0%)	143 (68.1%)	0.668
Rate of CLNM	43 (69.4%)	137 (65.2%)	0.547
Rate of total LLNM	16 (25.8%)	61 (29.0%)	0.619
Rate of level II metastasis	4 (6.5%)	29 (13.8%)	0.119
Rate of level III metastasis	11 (17.7%)	47 (22.4%)	0.433
Rate of level IV metastasis	12 (19.4%)	52 (24.8%)	0.378
Rate of level V metastasis	2 (3.2%)	19 (9.0%)	0.131
Number of LNM
Number of CLNM	2.3 (2.4)	2.7 (3.3)	0.468
Number of LLNM	5.2 (4.0)	5.5 (4.1)	0.759
LNR
Central LNR	0.34 (0.31)	0.36 (0.37)	0.684
Lateral LNR	0.04 (0.09)	0.08 (0.28)	0.316
Pattern of LNM
Skip metastasis	1 (1.6%)	6 (2.9%)	0.930
MLLNM	14 (22.6%)	54 (25.7%)	0.617
Simultaneous metastasis in LC	9 (14.5%)	49 (23.3%)	0.136

The categorical variables were expressed as n (%). The continuous variables were expressed as the mean (standard deviations). Multivariate analysis was expressed as adjusted odds ratio (95% CI). BSA, body surface area; LNM, lymph node metastasis; LLNM, lateral lymph node metastasis; CLNM, central lymph node metastasis; MLLNM, multiple lateral lymph node metastasis; LNR, lymph node ratio; and LC, lateral compartment. Age (per 10 years), glucose, thyroid stimulating hormone, cholesterol, triglyceride, tumor size, multifocality, extrathyroidal extension, and chronic lymphocytic thyroiditis as covariates to adjust OR value.