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. 2019 Apr 25;11(4):937. doi: 10.3390/nu11040937

Table 4.

Results of the assessment of blinding pre- and post-exercise.

Pre-Exercise
Condition Responded as Placebo Responded as Caffeine Responded as Do not Know Bang’s Blinding Index (Mean and 95% CI)
Placebo 6 2 9 0.29 (−0.06, 0.65)
Caffeine 3 8 6 0.24 (−0.07, 0.54)
Post-Exercise
Placebo 12 0 5 0.70 (0.49, 0.93)
Caffeine 3 9 5 0.35 (−0.00, 0.72)

CI: confidence interval.