BioMed Research International / 2017 / Article / Tab 13

Review Article

Evaluation of Mobile Phone and Cordless Phone Use and Glioma Risk Using the Bradford Hill Viewpoints from 1965 on Association or Causation

Table 13

Coherence. Hazard ratio (HR) and 95% confidence interval (CI) for survival of patients with glioblastoma multiforme and use of wireless phones in different age groups, study period 1997–2009 [55].

Mobile phoneCordless phoneWireless phone
, expHR95% CI, expHR95% CI, expHR95% CI

Glioblastoma multiforme ( = 926)
Age, first use
 <20 years old102.241.04–4.8561.780.68–4.67112.271.10–4.71
 20–49 years old2961.240.98–1.581771.311.001–1.723281.230.99–1.53
 ≥50 years old2261.110.91–1.362321.090.88–1.342791.140.95–1.37

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