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Table 8 Percentage change in tumour volume per year of latency and per 100 hours of cumulative use

From: Meningioma patients diagnosed 2007–2009 and the association with use of mobile and cordless phones: a case–control study

Type of phone n Change in volume per year of latency (%) 95%CI p Change in volume per 100 h of cumulative use (%) 95%CI p
Analogue 98 1.6 −4.7 to 8.3 0.62 0.1 −2.0 to 2.2 0.96
Digital, 2G 530 −0.9 −4.0 to 2.2 0.56 0.1 −0.6 to 0.8 0.83
Digital, UMTS, 3G 41 9.6 −21.1 to 52.4 0.57 1.3 −2.0 to 4.7 0.42
Mobile phone, total 531 −0.5 −2.8 to 1.9 0.68 0.1 −0.5 to 0.6 0.84
DECT 465 −0.8 −3.6 to 2.0 0.57 −0.3 −0.7 to 0.1 0.13
Wireless phone 570 −0.2 −2.5 to 2.1 0.86 −0.2 −0.5 to 0.1 0.19
  1. Adjustment was made for age at diagnosis and gender.