Summary of eight studies on acoustic neuroma and use of wireless (cell) telephones
| Study | Period covered | Study type | Age (years) | No of cases | OR* (95% CI) | Comments | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SIR, standardised incidence ratio. | |||||||||||
| *Unless otherwise stated. | |||||||||||
| Inskip et al 2001, USA5 | 1994–1998 | Case–control | ⩾18 | 5 | 1.9 (0.6 to 5.9) | 5 years of cell phone use | |||||
| Muscat et al 2002, USA6 | 1997–1999 | Case–control | ⩾18 | 11 | 1.7 (0.5 to 5.1) | 3–6 years of cell phone use | |||||
| Lönn et al 2004, Sweden; Interphone8 | 1999–2002 | Case–control | 20–69 | 14 | 1.8 (0.8 to 4.3) | ⩾10 years since first “regular” cell phone use, result for either side of head | |||||
| 12 | 3.9 (1.6 to 9.5) | ⩾10 years since first “regular” cell phone use on same side of head as tumour | |||||||||
| Christensen et al 2004, Denmark; Interphone9 | 2000–2002 | Case–control | 20–69 | 45 | 0.9 (0.5 to 1.6) | Regular use | |||||
| 2 | 0.2 (0.04 to 1.1) | ⩾10 years since first “regular” cell phone use. Significantly larger tumours among cellular phone users 1.66 cm3 vs1.39 cm3, p = 0.03. | |||||||||
| Schoemaker et al 2005, Denmark, Finland, Sweden, Norway, Scotland, England;, Interphone11 | 1999–2004 | Case–control | 18–69 (variable) | 360 | 0.9 (0.7 to 1.1) | Regular use | |||||
| 23 | 1.8 (1.1 to 3.1) | ⩾10 lifetime years of cell phone use on same side of head as tumour | |||||||||
| 31 | 1.3 (0.8 to 2.0) | ⩾10 years since first cell phone use on same side of head as tumour | |||||||||
| 12 | 0.9 (0.5 to 1.8) | ⩾10 lifetime years of cell phone use on opposite side of head as tumour | |||||||||
| 20 | 1.0 (0.6 to 1.7) | ⩾10 years since first cell phone use on opposite side of head as tumour | |||||||||
| Hardell et al 2006a, Sweden15 | 1997–2003 | Case–control | 20–80 | 130 | 1.7 (1.2 to 2.3) | >1-year latency of cell phone use | |||||
| 20 | 2.9 (1.6 to 5.5) | >10-year latency of cell phone use | |||||||||
| 10 | 3.5 (1.5 to 7.8) | >10-year latency of ipsilateral cell phone use | |||||||||
| 4 | 1.0 (0.3 to 2.9) | >10-year latency of cordless phone use | |||||||||
| 3 | 3.1 (0.8 to 12) | >10-year latency of ipsilateral cordless phone use | |||||||||
| Schüz et al 2006, Denmark17 | 1982–2002 | Cohort | ⩾18 | 32 | SIR = 0.7 (0.5 to 1.03) | No data on latency or laterality of tumour and use of mobile phone | |||||
| Takebayashi et al 2006, Tokyo18 | 2000–2004 | Case–control | 30–69 | 51 | 0.7 (0.4 to 1.2) | Regular use | |||||
| 4 | 0.8 (0.2 to 2.7) | Length of use >8 years | |||||||||
| 20 | 0.9 (0.5 to 1.6) | Ipsilateral use | |||||||||