Comparison of the reverse bevel versus Franseen type endoscopic ultrasound needle

Table 2 Factors associated with tissue adequacy-univariable and multivariable logistic regression analysis

	Univariable analysis			Multivariable analysis
Factors	Insufficient tissue (C1) (n = 29)	Sufficient tissue (C2-C5) (n = 197)	P value	OR (95%CI)	P value
	n (%) or (mean ± SD)	n (%) or (mean ± SD)
FNB needle useda
22G RB needle	22 (76)	106 (59)	0.03	3.01 (1.15-7.86)	0.02
22G FG needle	7 (24)	91 (41)
Gender
Female	12 (41)	85 (43)	1.00
Male	17 (59)	112 (57)
Age (years)	66.7 (16.4)	67.2 (11.4)	0.88
Presence of trainee
Yes	7 (24)	72 (37)	0.22
No	22 (76)	125 (63)
Location of lesiona
Gut wall lesions1	6 (20)	24 (12)	< 0.01	2.64 (0.85-8.19)	0.09
Pancreatic lesions	8 (28)	115 (58)		9.42 (3.51–25.33)	< 0.01
Lymph node	15 (52)	23 (12)		1.18 (0.00–669.44)	0.99
Extramural lesions2	0 (0)	35 (18)		1.00
Lesion size (mm)	30.1 (20.4)	36.2 (18.6)	0.11
Lesion nature
Solid	27 (94)	189 (96)	0.62
Mixed	2 (6)	8 (4)
Number of passes made	3.1 (0.7)	3.1 (0.8)	0.61
Sonovue contrast
Yes	1 (97)	4 (2)	0.50
No	28 (3)	193 (98)

^aParameters with a P < 0.10 on univariable analysis were included in the multivariable analysis and these parameters are indicated by an asterisk.

¹Gut wall lesions include oesophageal, gastric, duodenal or rectal wall lesions.

²Extramural lesions do not include pancreatic lesions and lymph node. Tissue adequacy: C1: Insufficient; C2: Benign; C3: Atypical; C4: Suspicious; C5: Malignant. FNB: Fine needle biopsy; RB: Reverse bevel; FG: Franseen geometry.