Table 1.

Patient and stone characteristics in the intention-to-treat population

Characteristic	PSS group (N = 39)	DJ group (N = 39)
Median age, yr	53 (45–65)	57 (47–68)
Median height, cm	170 (166–175)	170 (163–176)
Sex
Males	27/39 (69.2)	29/39 (74.4)
Females	12/39 (30.8)	10/39 (25.6)
Median stone size, mm	10 (7–13)	10 (8–14)
Stone site
Kidney	29/39 (74.4)	30/39 (76.9)
Ureter	10/39 (25.6)	9/39 (23.1)

DJ = double J stent; PSS = pigtail suture stent.

Data are presented as median (interquartile range) or n/N (%).