From: Tumour risk associated with use of cellular telephones or cordless desktop telephones
First tertile (h) | Second tertile (h) | Third tertile (h) | |||||||
---|---|---|---|---|---|---|---|---|---|
Ca/Co | OR | 95 % CI | Ca/Co | OR | 95 % CI | Ca/Co | OR | 95 % CI | |
Benign | |||||||||
Analogue | 77/109 | 1.5 | 1.1–2.1 | 51/89 | 1.4 | 0.97–2.1 | 71/99 | 1.9 | 1.3–2.7 |
Digital | 175/283 | 1.2 | 0.9–1.5 | 141/246 | 1.2 | 0.9–1.5 | 121/247 | 1.1 | 0.9–1.5 |
Cordless | 146/264 | 1.1 | 0.9–1.4 | 108/204 | 1.1 | 0.8–1.4 | 169/233 | 1.5 | 1.2–1.9 |
Total, any combination | 238/405 | 1.1 | 0.9–1.4 | 187/377 | 1.0 | 0.8–1.2 | 252/390 | 1.4 | 1.1–1.7 |
Meningioma | |||||||||
Analogue | 47/109 | 1.3 | 0.9–1.9 | 32/89 | 1.3 | 0.8–2.0 | 34/99 | 1.3 | 0.9–2.1 |
Digital | 116/283 | 1.0 | 0.8–1.3 | 106/246 | 1.2 | 0.9–1.6 | 73/247 | 1.0 | 0.7–1.4 |
Cordless | 106/264 | 1.1 | 0.8–1.4 | 70/204 | 0.9 | 0.7–1.3 | 118/233 | 1.4 | 1.1–1.9 |
Total, any combination | 163/405 | 1.0 | 0.8–1.3 | 136/377 | 1.0 | 0.8–1.2 | 162/390 | 1.2 | 0.96–1.6 |
Acoustic neuroma | |||||||||
Analogue | 20/109 | 2.3 | 1.3–4.0 | 18/89 | 2.7 | 1.5–4.9 | 30/99 | 4.1 | 2.4–7.0 |
Digital | 42/283 | 1.7 | 1.1–2.5 | 26/246 | 1.2 | 0.7–1.9 | 37/247 | 1.7 | 1.03–2.7 |
Cordless | 27/264 | 1.1 | 0.7–1.8 | 29/204 | 1.5 | 0.95–2.5 | 40/233 | 1.8 | 1.2–2.8 |
Total, any combination | 46/405 | 1.3 | 0.9–1.9 | 40/377 | 1.2 | 0.8–1.8 | 69/390 | 2.0 | 1.4–3.0 |
Other benign | |||||||||
Analogue | 10/109 | 2.5 | 1.2–5.5 | 2/89 | 0.5 | 0.1–2.1 | 7/99 | 1.7 | 0.7–4.2 |
Digital | 17/283 | 2.1 | 1.1–3.9 | 10/246 | 1.2 | 0.5–2.6 | 11/247 | 1.0 | 0.4–2.1 |
Cordless | 13/264 | 1.4 | 0.7–2.8 | 9/204 | 1.4 | 0.6–3.2 | 12/233 | 1.5 | 0.7–3.1 |
Total, any combination | 29/405 | 2.1 | 1.2–3.5 | 11/377 | 0.8 | 0.4–1.7 | 22/390 | 1.5 | 0.8–2.7 |