Table 6 Comparison of complications between the two study groups [n (%)]. χ2: Chi-square; *Fisher’s exact test; n (%): number of cases and their respective percentages.

From: Enhancing parathyroid preservation in papillary thyroid carcinoma surgery using nano-carbon suspension

Complication

Status

Total cases (n = 219)

Control case (n = 112)

Experimental case (n = 107)

χ2

P value

Hoarseness

Yes

14 (6.4)

7 (6.2)

7 (6.5)

0.008

0.930

No

205 (93.6)

105 (93.8)

100 (93.5)

  

Numbness and twitching

Yes

23 (10.5)

18 (16.1)

5 (4.7)

7.564

0.006

No

196 (89.5)

94 (83.9)

102 (95.3)

  

Lymphatic leakage

Yes

15 (6.8)

7 (6.3)

8 (7.5)

0.129

0.719

No

204 (93.2)

105 (93.7)

99 (92.5)

  

Hematoma

Yes

5 (2.3)

3 (2.7)

2 (1.9)

 

1.000*

No

214 (97.7)

109 (97.3)

105 (98.1)

  

Coughing

Yes

7 (3.2)

4 (3.6)

3 (2.8)

 

1.000*

No

212 (96.8)

108 (96.4)

104 (97.2)

  

Pathological parathyroid gland count

Yes

33 (15.1)

26 (23.2)

7 (6.5)

11.885

< 0.001

No

186 (84.9)

86 (76.8)

100 (93.5)