Table 3

Study (Reference)	Allocation Concealment	Method of Randomization	Blinding of Main Outcome	Intention-to- Treat Analysis	Number of Patients Withdrawn or Lost to Follow-up	Quality Assessment Score* (Jadad Scoring)
ASTRAL 2008	Adequate	Computerized Minimized-randomization procedure	No	Yes	38	3
STAR 2009	Adequate	Computer generated	No	Yes	4	3
DRASTIC 2000	Adequate	Computer generated	No	Yes	2	3
EMMA 1998	Unclear	Sealed envelopes	No,But objective measurement (24-hour ambulatory blood pressure)	No	1	1
SNRASCG 1998	Unclear	Not mentioned	Yes	No	6	1
RAOOD 2008	Unclear	Unmarked envelope	No	Yes	11	1

Adapted from Nordmann AJ, Woo K, Parkes R, Logan AG. Balloon Angioplasty or Medical Therapy for Hypertensive Patients with Atherosclerotic Renal Artery Stenosis? A Meta-Analysis of Randomized Controlled Trials
Randomized Controlled Trials
*Range of 0 (low) to 5 (high).
ASTRAL_Angioplasty and Stenting for Renal Artery Lesions trail
STAR_ Stent Placement in Patients with Atherosclerotic Renal Artery Stenosis and Impaired Renal Function
DRASTIC _ Dutch Renal Artery Stenosis Intervention Cooperative trial;
EMMA _ Essai Multicentrique Medicaments vs. Angioplastie trial;
SNRASCG _ Scottish and Newcastle Renal Artery Stenosis Collaborative Group trial
RAOOD trail. Renal Artery Ostial Occlusive Disease

Table 3: Methodological Quality of Included Trials that compared Angioplasty to medical management.