From: Limited accessibility to designs and results of Japanese large-scale clinical trials for cardiovascular diseases
Number of participants
Number of trials
Proportion of RCT (RCT/Total)
RCT*
Non-RCT*
Total
≥10,000
4
10
14
(9.2%)
0.286
1,000-10,000
46
19
65
(42.8%)
0.708
<1,000
53
12
0.815
Unknownâ€
7
1
8
(5.3%)
-
110
42
152
(100%)
0.724