Table 2 Odds ratios (ORs) and 95 % confidence intervals (CIs) from case-control studies on meningiomas

Carlberg et al. 2015 [18]

1.625

3.530

1.2 (0.9–1.6)

Coureau et al. 2014 [14]

194

892

0.90 (0.61–1.34)

Cardis et al. 2011 [16]

676

1.911

0.80 (0.66–0.96)

INTERPHONE Study 2010 [20]

2.409

2.662

0.83 (0.61–1.14)

Lahkola et al. 2008 [9]

1.204

2.945

0.76 (0.65–0.89)

Takebayashi et al., 2008 [23]

132

229

0.70 (0.42–1.16)

Klaeboe et al. 2007 [10]

207

358

1.2 (0.6–2.2)

Lönn et al. 2005 [13]

273

674

0.7 (0.5–0.9)