Table 2.

The weight coefficients of internal organs (% of body weight) of male rats after a five-week-long exposure to 5G RF-EMF.

Group of animals	Brain	Heart	Liver	Left testicle	Right testicle
Juvenile rats
Control (n = 10)	0.53 ± 0.03	0.26 ± 0.01	4.81 ± 0.42	0.54 ± 0.06	0.48 ± 0.07
exposure to RF-EMF 5G (n = 10)	0.54 ± 0.05 p = 0.068	0.29 ± 0.08 p = 1.000	4.22 ± 0.74 p = 0.068	0.59 ± 0.08 p = 0.068	0.58 ± 0.09 p = 0.068
Adult rats
Control (n = 10)	0.51 ± 0.04	0.22 ± 0.05	4.54 ± 0.18	0.50 ± 0.06	0.50 ± 0.07
exposure to RF-EMF 5G (n = 10)	0.52 ± 0.12 p = 0.575	0.23 ± 0.02 p = 0.273	4.73 ± 0.34 p = 0.273	0.55 ± 0.05 p = 0.068	0.56 ± 0.04 p = 0.108
Presenile rats
Control (n = 10)	0.35 ± 0.06	0.24 ± 0.02	3.33 ± 0.64	0.43 ± 0.05	0.43 ± 0.05
exposure to RF-EMF 5G (n = 10)	0.38 ± 0.02 p = 0.144	0.25 ± 0.02 p = 0.179	3.42 ± 0.57 p = 0.068	0.44 ± 0.02 p = 0.273	0.45 ± 0.01 p = 0.273

The data is presented as an average value ± standard error. Statistical analysis was carried out using the Statistica 6.0 software package (StatSoft). The nonparametric Mann–Whitney test was used to verify the reliability of group differences between the experimental and control groups of rats. The p-value is given in each age group compared to the control group. The differences are statistically significant at p < 0.05.