Table 1

Univariate ORs and 95% CIs of all clinical symptoms related with various possible confounders

Symptom/variableWorry about BSs (1)Computer use (2)Mobile use (3)
OR (95% CI)OR (95% CI)OR (95% CI)
Fatigue0.670.23 to 1.902.620.76 to 9.041.560.56 to 4.35
Irritability1.130.43 to 3.031.560.45 to 5.342.620.94 to 7.33
Headaches1.750.62 to 4.941.390.34 to 5.581.560.51 to 4.83
Nausea0.680.18 to 2.240.340.04 to 2.841.430.44 to 4.67
Lack of appetite1.050.33 to 3.403.160.87 to 11.444.28**1.43 to 12.78
Trouble sleeping3.12*1.10 to 8.860.550.16 to 1.880.740.27 to 2.02
Depression1.060.39 to 2.930.810.22 to 2.931.030.38 to 2.84
Lack of concentration0.920.35 to 2.471.110.33 to 3.762.790.99 to 7.80
Memory loss1.710.62 to 4.750.410.10 to 1.641.350.50 to 3.61
Skin alterations0.740.23 to 2.35ϕϕ0.630.16 to 2.45
Visual disturbances1.310.48 to 3.600.770.21 to 2.771.630.60 to 4.39
Vertigo0.610.20 to 1.910.770.19 to 3.102.90*1.04 to 8.07
Vascular alteration0.960.27 to 3.431.480.35 to 6.172.040.65 to 6.41
Hearing problems0.590.20 to 1.700.770.19 to 3.100.480.15 to 1.60
Walking difficulty0.600.20 to 1.79ϕϕ0.420.11 to 1.60
  • *p<0.05; **p<0.01.

  • (1) Not worried, as reference codes. (2) and (3) no device use, as reference code, ϕ any participant affected using computer.

  • BS, base station.