Table 3.

Inadequate biopsy rates in studies that compared palpation-guided versus ultrasound-guided thyroid fine-needle aspiration biopsies

Author and year	No. of nodules	Palpation-guided	Ultrasound-guided	Reference
Danese 1998	9683	9%	4%	[11]
Hatada 1998	166	30%	17%	[12]
Carmeci 1998	497	16%	7%	[5]
Mehrotra 2005	262	47%	16%	[8]
Ghofrani 2006	1502	17%	7%	[9]
Cai 2006	434	13%	6%	[13]
Cesur 2006	285	32%	21%	[7]
Izquierdo 2006	376	11%	7%	[10]
Can 2008	386	27%	13%	This study