Analysis of the incidence and influencing factors of hyponatremia before 131I treatment of differentiated thyroid carcinoma

Table 4 Logistic regression analysis of factors associated with hyponatremia development

Items	β	OR (95%CI)	P value
Gender (male)	-0.647	0.524 (0.203, 1.354)	0.182
Age (yr)	0.007	1.007 (0.965,1.050)	0.762
Distant metastasis (n)	1.193	3.296 (1.112, 9.770)	0.031
History of diuretics (n)	-1.212	0.298 (0.090,0.988)	0.048
TSH (mIU/L)	-0.009	0.991 (0.980,1.002)	0.101
Urinary iodine (µg/L)	-0.011	0.989 (0.98,0.998)	0.075
eGFR (mL/min m2)	-0.032	0.969 (0.934,1.005)	0.09
Pre-operation Na (mmol/L)	-0.271	0.763 (0.627, 0.928)	0.007
Blood urea nitrogen (mmol/L)	0.420	1.521 (1.094, 2.115)	0.013