Table 1.

Detection rate of malignancy among patients undergoing thyroidectomy from 1994 to 2015

Period	94–95*	96–97	98–99	00–01	02–03	04–05	06–07	08–09	10–11	12–13	14–15	Total	P value
Benign, n (%)	114 (83.2)	136 (86.1)†‡	169 (88.0)†‡	268 (83.0)†	286 (80.1)†‡	495 (79.2)‡	535 (71.4)†‡	738 (64.6)†‡	901 (52.4)†‡	1033 (42.2)†‡	890 (30.2)†‡	5563 (51.5)	<0.001
Cancer, n (%)	23 (16.8)	22 (13.9)*†	23 (12.0)*†	55 (17.0)*	71 (19.9)*†	130 (20.8)†	214 (28.6)*†	405 (35.4)*†	817 (47.6)*†	1413 (57.8)*†	2060 (69.8)*†	5235 (48.5)
Total	137	158	192	323	357	625	749	1143	1718	2446	2950	10 798

*The last 2 digits of the years are displayed (hereafter).

†Percentages significantly different from the previous year.

‡Percentages significantly different within the period of 94–95.