Table 2.

(A) Absolute volumetric reduction (mL) at 1-, 3- and 6-month follow-ups, expressed as median and interquartile range; (B) volume reduction rate (%) at 1-, 3- and 6-month follow-ups, expressed as median and interquartile range

	ATN (n = 18)	FTN (n = 18)	p value
A	Absolute volumetric reduction (mL)
1 month	6.0 (3.275–7.850)	5.9 (4.7–8.0)	0.94
3 months	8.90 (6.20–14.12)	9.4 (7.75–16.48)	0.85
6 months	10.55 (6.175–16.125)	12.5 (9.65–16.02)	0.27
B	Volume reduction rate (%)
1 month	33.50 (16.75–55.75)	29.50 (25.25–46.25)	0.67
3 months	55.50 (30.25–63.75)	52.00 (45.50–57.50)	0.80
6 months	54.50 (39.00–72.75)	63.50 (55.00–75.50)	0.14

p values were derived from the Wilcoxon test

ATN adjustable-tip needle, FTN fixed-tip needle