Table 1 Statistical analysis results (F-values and p values) of biochemistry assays for salivary biomarkers of stress.

From: Modulation of magnetoencephalography alpha band activity by radiofrequency electromagnetic field depicted in sensor and source space

 

Morning

Afternoon

Exposure condition

Time

Interaction

Exposure condition

Time

Interaction

Cortisol

F1,24 = 0.08

p = 0.78

F1,24 = 0.60

p = 0.45

F1,24 = 0.82

p = 0.37

F1,30 = 1.88

p = 0.18

F1,30 = 1.90

p = 0.18

F1,30 = 1.00

p = 0.32

Chromogranin A

F1,24 = 0.09

p = 0.77

F1,24 = 0.37

p = 0.55

F1,24 = 1.08

p = 0.31

F1,30 = 0.08

p = 0.78

F1,30 = 1.91

p = 0.18

F1,30 = 0.48

p = 0.50

Alpha Amylase

F1,24 = 0.01

p = 0.92

F2.43,58.31 = 6.94

***p < 0.001

F3,72 = 0.23

p = 0.88

F1,30 = 0.71

p = 0.41

F2.72,81.58 = 0.40

p = 0.73

F3,90 = 1.07

p = 0.36

  1. Saliva concentration of cortisol, chromogranin A and alpha amylase were analyzed by two-way repeated-measure ANOVA, considering as factors the exposure condition and the collection time in the morning or in the afternoon. For cortisol we considered time factor (two levels: Sal 1, Sal 4) and exposure condition factor (two levels: real exposure, sham exposure); for chromogranin A: time factor (two levels: Sal 2, Sal 3) and exposure condition factor (two levels: real exposure, sham exposure); for alpha amylase: time factor (four levels: Sal 1, Sal 2, Sal 3, Sal 4) and exposure condition factor (two levels: real exposure, sham exposure). Only alpha amylase collected in the morning showed a statistically significant variation, due to time factor (***p < 0.001).
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