From: New Zealand adolescents’ cellphone and cordless phone user-habits: are they at increased risk of brain tumours already? A cross-sectional study
Risk concern
Cellphone % (N=325)
Cordless phone % (N=324)
None
7.4
23.5
Low
37.2
34.9
Moderate
29.8
11.1
High
7.1
4.0
Don’t know
18.5
26.6