Nontoxic Multinodular Goitre and Incidental Thyroid Cancer: What Is the Best Surgical Strategy?—A Retrospective Study of 2032 Patients

Table 4

The occurrence of ITC after each type of surgery and for each year of the study.

Type of surgery	ITC in NTMNG							Chi^2	RG	Chi^2
	Year								Period
	2008	2009	2010	2011	2012	2013	2008–2013		2008–2013
TT	1	2	0	2	7	6	18 (2.07%)	0.039	1 (0.11%)	0.234
STT	5	1	5	3	3	4	21 (4.52%)		3 (0.64%)
DO	2	1	2	0	3	3	11 (1.56%)		2 (0.28%)
Total n (%)	8 (2.3%)	4 (1.29%)	7 (1.96%)	5 (1.28%)	13 (2.98%)	13 (2.75%)	50 (2.46%)		6 (0.29%)

ITC: incidental thyroid cancer; NTMNG: nontoxic multinodular goitre; RG: recurrent goitre; TT: total thyroidectomy; STT: subtotal thyroidectomy; DO: Dunhill operation.