Table 6.
Associations between RF-EMF exposures and having ‘Trouble falling asleep’ (symptom)
| Symptom | Symptom categories (N for unadjusted model/N for adjusted model) | Exposure | Exposure categories (N for unadjusted model/N for adjusted model) | Unadjusted OR (95% CI) for each exposure category | Adjusted OR (95% CI) for each exposure category | Confounders in model |
|---|---|---|---|---|---|---|
| Trouble falling asleep |
No (165/156) |
Cordless calls > 10 minutes weekly |
0-1 (111/105) |
1 |
1 |
Time of lights out*+ |
| 1 or 2 times weekly (88/85) |
>1-5 120/114) |
1.54 (0.54-2.53) |
1.56 (0.93-2.62) |
Sex |
||
| 3 or 4 times weekly (39/36) |
>5-120 (99/95) |
1.99 (1.19-3.34)* |
1.58 (0.89-2.81) |
Decile |
||
| Most nights (38/37) |
Times woken in night |
|||||
| Trouble falling asleep |
No, hardly ever (184/183) |
Minutes on cordless phone daily |
0-4 (147/147) |
1 |
1 |
Sex* + ♀ |
| 1 or 2 times weekly (91/91) |
5-15 (106/105) |
1.14 (0.77-1.69) |
1.00 (0.65-1.54) |
Decile+ |
||
| 3 or 4 times weekly (36/36) |
16-240 (96/96) |
1.61 (1.06-2.43) |
1.41 (0.89-2.23) |
Cold/flu |
||
| Most nights (38/38) | ||||||
| Trouble falling asleep |
No, hardly ever (-/175) |
Cellphone calls >10 minutes weekly |
0 (-/267) |
Model invalid |
1 |
Woken by phone**+ |
| 1 or 2 times weekly (-/90) |
1-6 (-/63) |
0.92 (0.67-1.25) |
Light out time+ |
|||
| 3 or 4 times weekly (-/37) |
7-35 (-/12) |
1.38 (0.66-2.91) |
Decile+ |
|||
| Most nights (-/40) |
Sex + ♀ |
|||||
| Trouble falling asleep |
No, hardly ever (-/179) |
Cellphone headset |
No (320) |
Model invalid |
1 |
Sex** + ♀ |
| 1 or 2 times weekly (-/92) |
Wired (16) |
0.41 (0.16-1.08) |
Light out time*+ |
|||
| 3 or more times weekly (-/77) |
Wireless (12) |
1.23 (0.51-2.97) |
Decile+ |
|||
| Age | ||||||
| Times woken |
Bold font Sig. p < 0.05; *Sig. p ≤ 0.01; **Sig. p ≤ 0.001; + positive association; ♀female; ‘Model invalid’ means it did not meet the criteria outlined in the methods.