Table 2.

Thyroid surgery in study periods

Time Period	Malignant (PTC)	Benign	Number of patients operated
I (1990-1996)	14 (8)	803	817
II (1997-2003)	78 (57)	1063	1141
Total	92	1866	Chi-square: 27.899 p< 0.0001 Fisher’s exact test: p<0.0001
Thyroid cancer cases between the second and third periods
Time Period	Malignant (PTC)	Benign	Number of patients operated
II (1997-2003)	78 (57)	1063	1141
III (2004-2015)	197 (168)	2096	2293
Total	275	3159	Chi-square: 3.186 P: 0.0743 Fisher’s exact test: 0.0825