Table 3 Summary of nine studies on other brain tumour types or not specified and use of wireless telephones.
Study | Period covered | Study type | Age (years) | Tumour type | No. of cases | OR* (95% CI) | Comments | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hardell et al 1999, 2001 Sweden1,2 | 1994–1996 | Case–control | 20–80 | Brain tumours | 78 | 1.0 (0.7 to 1.4) | Analogue and digital cell phone use | |||||||
34 | 1.1 (0.6 to 1.8) | Ipsilateral use | ||||||||||||
16 | 1.2 (0.6 to 2.6) | >10‐year latency, analogue cell phone | ||||||||||||
Muscat et al 2000 USA3 | 1994–1998 | Case–control | 18–80 | Brain tumours | 66 | 0.9 (0.6 to 1.2) | Regular use | |||||||
Neuro‐epithelioma | 35 | 2.1 (0.9 to 4.7) | Mean duration of use 2.8 years | |||||||||||
Johansen et al 2001 Denmark4 | 1982–1995 | Cohort | >18 | Brain tumours | 20 | SIR = 1.3 (0.8 to 2.1) | Analogue and digital cell phone use | |||||||
9 | SIR = 1.2 (0.6 to 2.3) | ⩾3‐year duration of digital subscription | ||||||||||||
Inskip et al 2001, USA5 | 1994–1998 | Case–control | ⩾18 | Meningioma | 6 | 0.9 (0.3 to 2.7) | ⩾5 years of cell phone use | |||||||
Lönn et al 2005 Sweden Interphone10 | 2000–2002 | Case–control | 20–69 | Meningioma | 118 | 0.7 (0.5 to 0.9) | Regular use | |||||||
5 | 1.3 (0.5 to 3.9) | ⩾10 years since first “regular” cell phone use on same side of head as tumour | ||||||||||||
3 | 0.5 (0.1 to 1.7) | ⩾10 years since first “regular” cell phone use on opposite side of head as tumour. | ||||||||||||
Christensen et al 2005 Denmark, Interphone12 | 2000–2002 | Case–control | 20–69 | Meningioma | 67 | 0.8 (0.5 to 1.3) | Regular use | |||||||
6 | 1.0 (0.3 to 3.2) | ⩾10 years since first regular use of cell phone | ||||||||||||
Schüz et al 2006 Germany, Interphone14 | 2000–2003 | Case–control | 30– (59) –69 (see above) | Meningioma | 104 | 0.8 (0.6 to 1.1) | Regular use | |||||||
5 | 1.1 (0.4 to 3.4) | ⩾10 years since first “regular use” of cell phone | ||||||||||||
Hardell et al 2006a, Sweden15 | 1997–2003 | Case–control | 20–80 | Meningioma | 347 | 1.1 (0.9 to 1.3) | >1‐year latency of cell phone use | |||||||
38 | 1.5 (0.98 to 2.4) | >10 ‐year latency of cell phone use | ||||||||||||
15 | 2.0 (0.98 to 3.9) | >10 ‐year latency of ipsilateral cell phone use | ||||||||||||
23 | 1.6 (0.9 to 2.8) | >10 ‐year latency of cordless phone use | ||||||||||||
9 | 3.2 (1.2 to 8.4) | >10 ‐year latency of ipsilateral cordless phone use | ||||||||||||
Schüz et al 2006, Denmark17 | 1982–2002 | Cohort | ⩾18 | Brain and nervous system | 28 | SIR = 0.7 (0.4 to 0.95) | ⩾10 ‐year latency |
SIR, standardised incidence ratio.
*Unless otherwise stated.