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

Table 4

Relationship between BFP and different regional lymph node involvement in women.

	Univariate analysis
	Nonobesity (BFP)	Obesity (BFP)	value
Rate of LNM
Rate of total LNM	283 (58.8%)	145 (55.3%)	0.357
Rate of CLNM	276 (57.4%)	137 (52.3%)	0.182
Rate of total LLNM	91 (18.9%)	43 (16.4%)	0.396
Rate of level II metastasis	42 (8.7%)	19 (7.3%)	0.483
Rate of level III metastasis	74 (15.4%)	28 (10.7%)	0.075
Rate of level IV metastasis	74 (15.4%)	38 (14.5%)	0.749
Rate of level V metastasis	16 (3.3%)	11 (4.2%)	0.544
Number of LNM
Number of CLNM	1.7 (2.3)	1.9 (2.4)	0.511
Number of LLNM	5.0 (3.6)	5.5 (4.8)	0.527
LNR
Central LNR	0.23 (0.29)	0.28 (0.32)	0.051
Lateral LNR	0.05 (0.39)	0.03 (0.09)	0.434
Pattern of LNM
Skip metastasis	7 (1.5%)	8 (3.1%)	0.139
MLLNM	75 (15.6%)	38 (14.5%)	0.693
Simultaneous metastasis in LC	71 (14.8%)	33 (12.6%)	0.416

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). BFP, body fat percentage; 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.