Fig. 2. Forest plot for recurrence-free survival according to the mean thyroid-stimulating hormone (TSH) values during the total follow-up period or 5 years. In multivariate Cox regression analysis, known risk factors including age, sex, tumor size, multiplicity, extrathyroidal extension, and lymph node metastasis were adjusted. (A) Univariate Cox regression analysis with mean TSH values were calculated (TSHtotal) values. (B) Multivariate Cox regression analysis with mean TSHtotal values. (C) Univariate Cox regression analysis with mean TSH levels for 5 years after surgery (TSH5yrs) values. (D) Multivariate Cox regression analysis with mean TSH5yrs values. HR, hazard ratio; CI, confidence interval.
