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Table 4 Percentages of adults and teenagers who believed they were being exposed during exposure and P values for sham and real exposures

From: Effects of 60 Hz magnetic fields on teenagers and adults

Group Session Exposure
2nd 3rd 4th 5th 6th
   Mean (%) P-value Mean (%) P-value Mean (%) P-value Mean (%) P-value Mean (%) P-value
Adult (n = 30) Sham 6.7 1.000 16.7 0.625 23.3 0.219 16.7 0.250 10.0 0.375
Real 6.7 10.0 10.0 6.7 20.0
Teenager (n = 30) Sham 6.7 0.375 20.0 1.000 20.0 1.000 20.0 0.687 16.7 0.625
Real 16.7 16.7 20.0 13.3 10.0