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Table 2. Results of epidemiological studies on mobile phone use and brain tumours 17.
Study Brain tumours Brain tumours short latency Brain tumours longer latency
17 The table is modified from the report to the Swedish Radiation Protection board (SSI's Independent Expert
Group on Electromagnetic Fields 2005).
18 RR - Relative Risk
19 CI - Confidence Interval
* Discordant pairs
† No cases had shorter than 6 years latency
  Number exposed cases RR18estimate (95% CI19) Number exposed cases RR estimate (95% CI) Number exposed cases RR estimate (95% CI)
Hardell et al. 78 1.0 (0.7-1.4) 78 1.0 (0.7-1.4)
>1 yr		 34
16		 0.8 (0.5-1.4) >5 yr
1.2 (0.6-2.6) >10 yr
Muscat et al. 2000 66 0.8 (0.6-1.2) 28 1.1 (0.6-2.0) 2-3 yr 17 0.7 (0.4-1.4) >4 yr
Inskip et al. 139 0.8 (0.6-1.1) 51 1.0 (0.6-1.6)
0.5-3 yr		 54
22		 1.0 (0.6-1.6) ≥ 3 yr
0.7 (0.4-1.4) ≥5 yr
Johansen et 154 1.0 (0.8-1.1) 87 1.1 (0.9-1.3)
1-4 yr		 24 1.0 (0.7-1.6) >5 yr
Auvinen et al. 2002 40 analogue,
16 digital 		1.3 (0.9-1.8) 15 analogue, 11 digital 1.2 (0.7-2.0)
1-2 yr		 17 analogue,  
1 digital 		1.5 (0.9-2.5) >2 yr  
Hardell et al. 188* analogue
224* digital		 1.3 (1.0-1.6)
1.0 (0.8-1.2)		 188* analogue
224* digital		 1.3 (1.0-1.6)
>1 yr
1.0 (0.8-1.2)
>1 yr		 46* analogue
33* digital		 1.3 (0.8-2.3) >10 yr
0.9 (0.6-1.5) >5 yr
Christensen et al. 2005 47 low-grade
glioma
59 high-grade
glioma
67 meningioma		 1.1 (0.6-2.0)
0.6 (0.4-0.9)
0.8 (0.5-1.3)		 19
24
35		 0.9 (0.4-1.8)
1-4 yr
0.6 (0.3-1.0)
1-4 yr
0.8 (0.5-1.3)
1-4 yr		 6
8
6		 1.6 (0.4-6.1) ≥10 yr
0.5 (0.2-1.3) ≥10 yr
1.0 (0.3-3.2) ≥10 yr
Lönn et al. 2005 214 glioma
118 meningioma		 0.8 (0.6-1.0)
0.7 (0.5-0.9)		 112
64		 0.8 (0.6-1.1)
1-4 yr
0.6 (0.4-0.9)
1-4 yr		 25
12		 0.9 (0.5-1.5) ≥10 yr
0.9 (0.4-1.9) ≥10 yr
Hardell et al.
2005a,
Hardell et al.
2005b		 68 malignant,
analogue
198 malignant,
digital
35 meningioma,
analogue
151 meningioma,
digital		 2.6 (1.5-4.3)
1.9 (1.3-2.7)
1.7 (1.0-3.0)
1.3 (0.9-1.9)		 20 analogue
100 digital
1 analogue
96 digital		 1.8 (0.9-3.5)
6-10 yr†
1.6 (1.1-2.4)
1-5 yr
1.2 (0.1-12)
1-5 yr
1.2 (0.8-1.8)
1-5 yr		 48 analogue
19 digital
20 analogue
8 digital		 3.5 (2.0-6.4) >10 yr
3.6 (1.7-7.5) >10 yr
2.1 (1.1-4.3) >10 yr
1.5 (0.6-3.9) >10 yr
Hepworth et al. 2006 508 glioma 0.9 (0.8-1.1) 271 glioma 0.9 (0.7-1.1)
1.5-4yr		 170 glioma
66 glioma		 1.0 (0.8-1.3) 5-9 yr
0.9 (0.6-1.3) ≥10yr
Schüz et al.
2006a		 138 glioma
104 meningioma		 1.0 (0.7-1.3)
0.8 (0.6-1.1)		 82 glioma
73 meningioma		 0.9 (0.6-1.2)
1-4 yr
0.9 (0.6-1.2)
1-4 yr		 51 glioma
12 glioma
23 meningioma
5 meningioma		 1.1 (0.8-1.7) ≥5yr
2.2 (0.9-5.1) ≥10yr
0.9 (0.5-1.5) ≥5yr
1.1 (0.4-3.4) ≥10yr
Schüz et al.
2006b		 580 1.0 (0.9-1.1) 266
235		 1.0 (0.9-1.2)
1-4 yr
1.0 (0.8-1.1)
5-9 yr		 28 0.7 (0.4-1.0) ≥10yr

Source: SCENIHR  Possible effects of Electromagnetic Fields (EMF) on Human Health