Table 4 Risk factor identification of symptomatic hypocalcemia

Age (>45/<45)

0.771

0.493

Sex(male/female)

1.837

0.166

Po hypocalcemia

2.446

0.014

2.222

1.013, 4.877

0.046

Po hyperphosphatemia

1.237

0.540

Po hypomagnesemia

2.689

0.047

1.376

0.973, 2.011

0.218

Pathological diagnosis (malignancy/benign)

3.639

0.144

TTx/CT

3.568

0.304

bilateral/unilateral CND

1.432

0.344

TTx+BCND

1.369

0.397

Lateral nodal dissection

1.276

0.590

T1-T2/T3-T4

0.679

0.275

Po iPTH<1.6 pmol/L

4.949

<0.001

1.194

0.897, 1.901

0.128

Relative decline of iPTH>70%

6.510

<0.001

6.691

3.033, 14.759

<0.001

Thyroiditis

0.649

0.344

Hyperthyroidism

1.000

>0.999

Autotransplantataon of PTG

0.625

0.204

Identification of PTG (≥3/<3)

0.986

0.121