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Coherence. Hazard ratio (HR) and 95% confidence interval (CI) for survival of patients with glioma and use of wireless phones, study period 1997–2009 [55].
| Latency > 20 years | Glioma | Glioblastoma multiforme | ||
|---|---|---|---|---|
| HR | 95% CI | HR | 95% CI | |
| Wireless phone | 1.68 | 1.23–2.29 | 2.09 | 1.45–3.01 |
| Mobile phone | 1.79 | 1.30–2.47 | 1.99 | 1.37–2.91 |
| Cordless phone | 1.35 | 0.49–3.72 | 3.37 | 1.04–10.92 |
