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. 2006 Apr 15;332(7546):886–891. doi: 10.1136/bmj.38765.519850.55

Table 3.

Number of participants who believed a signal was present for each experimental condition and mean (SD) confidence (0-100) reported by participants for these “signal present” assessments

Sensitive participants
Exposure Controls
Completed all three exposures
Completed at least one exposure
No Confidence No Confidence No Confidence
GSM 35/60 36.8 (28.5) 36/60 58.6 (30.8) 41/65 61.2 (31.0)
CW 42/60 39.7 (33.0) 41/60 57.7 (27.8) 45/64 57.8 (28.9)
Sham 41/60 43.9 (31.9) 38/60 64.4 (31.7) 39/63 64.0 (31.3)

CW=continuous wave; GSM=global system for mobile communication.