Table 2 Patients characteristics

Age ± SD (years)

31.2 ± 9.31

36.2 ± 10.5

47.9 ± 15.7

Gender (M/F)

11/89

16/84

17/83

 Prophylactic

100

100

17

 Therapeutic

0

0

83

Mean operating time (min)

124.8 ± 19.4

43.8 ± 9.29

57.9 ± 12.23

intraoperative blood loss (ml)

7.02 ± 3.44

6.56 ± 3.24

8.31 ± 3.15

Postoperative hospital stay time(D)

3.88 ± 0.52

3.13 ± 0.76

4.02 ± 0.98

Total drain volumes (ml)

63.34 ± 21.2

25.18 ± 18.3

52.28 ± 16.9

1.85 ± 0.42

1.39 ± 0.37

1.89 ± 0.62

Parathyroid dysfunction (number)

7

6

15

 Transient

7

5

12

 Persistent

0

1

3

Hypocalcemia (number)

9

11

18

 Transient

9

10

15

 Persistent

0

1

3

Recurrent laryngeal injury (number)

7

2

6

 Transient

7

2

4

 Definitive

0

0

2

 papillary thyroid carcinoma

100

100

100

 Thyroid volume (mm³)

7445 ± 438

7562 ± 492

8250 ± 509

 Mean diameter of tumor (cm)

0.89 ± 0.52

0.93 ± 0.43

2.85 ± 1.83

 Extracapsular invasion(+/total)

0/100

0/100

43/100

 Parathyroid in specimen

4

3

7

 Coexistence thyroiditis

9

11

22

 Mean number of LN(n)

7.78 ± 2.03

2.99 ± 1.53

10.3 ± 3.4

 Mean Metastatic (n)

2.17 ± 3.12

0.77 ± 1.29

3.47 ± 4.08