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. 2019 Aug 9;20:493. doi: 10.1186/s13063-019-3578-y

Table 2.

Criteria specifications for all 97 studies with an internal pilot included in the audit

Number/rate Type of criteria
Red/amber/green Stop/go Missing
Number 18 (18.6%) 39 (40.2%) 0 (0.0%)
Number and rate 1 (1.0%) 4 (4.1%) 0 (0.0%)
Rate 10 (10.3%) 15 (15.5%) 0 (0.0%)
Missing 0 (0.0%) 0 (0.0%) 10 (10.3%)