Table 4.

Relationship between grade of goitre and complication rates of initial TT

	Grade of goitre (n = 4632)
Complication	0 (n = 1302)	I (n = 2063)	II (n = 828)	III (n = 439)
RLN injury
Temporary	2 (0.15 %)	6 (0.29 %)	3 (0.36 %)	18 (4.1 %)
Permanent	4 (0.31 %)	7 (0.34 %)	3 (0.36 %)	1 (0.22 %)
Total	6	9	10	19
Hypoparathyroidism
Temporary	18 (1.38 %)	30 (1.45 %)	33 (4.00 %)	71 (16.17 %)
Permanent	0 (0)	0 (0)	1 (0.12 %)	0 (0)
Total	18	30	34	71

RLN recurrent laryngeal nerve, 0 goitre that cannot be touched or seen, I goitre that can be touched but cannot be seen, II goitre that can be both touched and seen but is not beyond the exterior margin of the sternocleidomastoid muscle, III goitre that can be both touched and seen but is beyond the exterior margin of the sternocleidomastoid muscle