Endoscopic ultrasound-guided fine-needle aspiration pancreatic adenocarcinoma samples yield adequate DNA for next-generation sequencing: A cohort analysis

Table 1 Characteristics of the enrolled patients

Variable	Amount
Number of PDAC cases	105
Age (yr)	67.02 ± 8.38
Male (number of cases)	51
Tumor diameter (mm)	43.66 ± 14.83
Tumor location (number of cases)
Head/neck	60
Body/tail	44
Tumor stage (number of cases)1
IA	1
IB	3
IIA	3
IIB	12
III	31
IV	55
Needle size (number of samples)
22G	75
19G	30

¹According to American Joint Committee on 8^th Cancer edition.

PDAC: Pancreatic adenocarcinoma; FNA: Fine needle aspiration; G: Gauge; NGS: Next generation sequencing. Data is given as: mean ± standard deviation, or median (inter quartile range).

Table 2 Purity parameters across the different DNA yield categories

DNA yield	Purity parameters
	A260/280	A260/230
≥ 100 ng	1.86 (1.80-1.89)	2.23 (1.79-2.35)
≥ 50 ng	1.85 (1.80-1.89)	2.21 (1.7-2.36)
≥ 10 ng	1.85 (1.79-1.86)	2.2 (1.72-2.36)