Table 2. Demographics of the patients.

Demographic	Mean	Median	Range	Interquartile range	No. of patients (O)	SD	SE
Age (y)	65.78	68.00	23–92	16.50	49 (2)	14.32	2.05
Weight (kg)	75.72	77.00	45–108	17.25	47 (4)	14.75	2.15
Height (cm)	170.56	172.50	140–192	13.50	48 (3)	9.98	1.44
Balloon volume (mL)	14.90	15.00	10–50	3.00	48 (3)	6.08	0.88
Pre-RBV VAS score	2.80	2.00	0–10	5.00	46 (3)	3.05	0.45
Post-RBV VAS score	2.02	1.00	0–7	4.00	46 (3)	2.30	0.34
Pre-RBV CRBD grade	1.02	1.00	0–3	1.00	48 (2)	0.76	0.11
Post-RBV CRBD grade	0.75	1.00	0–2	1.00	48 (2)	0.76	0.11

O, omitted patients for insufficient data; SD, standard deviation; SE, standard error; RBV, reduction of balloon volume; VAS, visual analogic scale; CRBD, catheter-related bladder discomfort.