Table 1.

Patient demographics and overall outcomes of the study

Patient demographics and clinical data (N = 544)	n (%) ± SD
Male:female (n)	347: 197
Mean age, years ± SD	56 ± 16.3
Mean length of stay (days) ± SD	0.49 ± 2.22
Day case	424 (77.9)
<24 h	72 (13.2)
1–3 days	23 (4.2)
>3 days	25 (4.6)
Positive pre-operative urine culture (treated appropriately), n (%)	56 (10.3)
Mean operative time (min) ± SD	46.6 ± 25.5
Access sheath, (%)	206 (38%)
Size: 9.5/11.5, 10/12	78 (14.4)
12/14	109 (20.2)
14/16	11 (2.0)
Not stated	8 (1.5)
Pre-operative stent, n (%)	153 (28.1)
Post-operative stent placement, n (%)	523 (96.1)
Stone-free rate, n (%)	472/501 (94.2)