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. 2018 Jun 14;2(6):371–380. doi: 10.1002/bjs5.78

Table 3.

Distribution of IDEAL stage of innovation, by indication

IDEAL stage
Indication 1 (case report) 2a (cohort study) 2b (feasibility RCT) 3 (RCT) 4 (registry)
Total (n = 35) 0 34 0 1 0
Prophylaxis (n = 4) 0 3 0 1 0
Reinforcement (n = 23) 0 23 0 0 0
Mixed (n = 8) 0 8 0 0 0