Table 5 Odds ratio (OR) and 95% confidence interval (CI) for meningioma for cumulative use of wireless phones in quartiles based on use of wireless phones among controls in total
Quartile | Analogue | Digital(2G) | Digital(UMTS,3G) | Mobile phone,total | Cordless phone | Digital type | Wireless phone |
|---|---|---|---|---|---|---|---|
OR, CI | OR, CI | OR, CI | OR, CI | OR, CI | OR, CI | OR, CI | |
(Ca/Co) | (Ca/Co) | (Ca/Co) | (Ca/Co) | (Ca/Co) | (Ca/Co) | (Ca/Co) | |
First quartile | 0.9 | 1.0 | 0.7 | 1.0 | 1.0 | 1.1 | 1.1 |
0.6-1.5 | 0.7-1.4 | 0.3-1.3 | 0.7-1.4 | 0.7-1.4 | 0.8-1.6 | 0.7-1.5 | |
(77/184) | (317/620) | (30/87) | (306/587) | (194/434) | (185/327) | (178/317) | |
Second quartile | 0.6 | 1.0 | 0.4 | 1.0 | 0.9 | 0.9 | 0.9 |
0.3-1.4 | 0.7-1.5 | 0.1-1.2 | 0.7-1.4 | 0.6-1.3 | 0.6-1.3 | 0.6-1.3 | |
(12/47) | (122/260) | (6/34) | (119/261) | (116/278) | (134/320) | (134/314) | |
Third quartile | 1.3 | 0.9 | 0.6 | 0.9 | 1.2 | 0.9 | 0.9 |
0.6-2.9 | 0.6-1.4 | 0.2-1.8 | 0.6-1.4 | 0.8-1.8 | 0.6-1.3 | 0.6-1.4 | |
(12/23) | (75/199) | (6/17) | (85/210) | (117/194) | (135/317) | (138/315) | |
Fourth quartile | 3.0 | 1.5 | 7.3 | 1.3 | 1.8 | 1.4 | 1.4 |
0.9-9.7 | 0.9-2.3 | 1.2-46 | 0.8-1.9 | 1.2-2.8 | 0.96-2.0 | 0.9-2.0 | |
(7/6) | (79/129) | (5/2) | (84/159) | (95/109) | (187/297) | (191/315) | |
p, trend | 0.11 | 0.06 | 0.04 | 0.34 | 0.0003 | 0.002 | 0.01 |