Skip to main content

Table 1 Results of single factor K-M analysis related to recurrence of MTC

From: Correlation between preoperative ultrasonic features of medullary thyroid carcinoma and postoperative recurrence

group character recurrence group (cases) Non- recurrence group (cases) Chi-square P
Sex male 12 30 1.542 0.214
female 5 27
Age ≤52.5 12 31 0.925 0.336
>52.5 5 26
Preoperative calcitonin(a*) ≤565.8 pg/ml 1 25 6.363 0.012
>565.8 pg/ml 11 23
Postoperative calcitonin(b*) ≤45.0 pg/ml 1 33 12.786 0.000349
>45.0 pg/ml 15 21  
Tumor size ≤40.0 mm 13 53 5.837 0.016
>40.0 mm 4 4
Capsular invasion no 1 29 9.273 0.002
yes 16 28
Metastatic cervical lymph nodes no 2 31 8.442 0.004
yes 15 26
  1. *Notes: a. 60 cases with preoperative calcitonin; b. 70 cases with postoperative calcitonin