Table 3. Odds ratio (OR) and 95% confidence interval (CI) for glioma (n = 1,380) for use of mobile phone (total, ipsilateral, and contralateral exposure), total and in different age groups (age at diagnosis).

Number of exposed cases (Ca) and controls (Co) are given. Adjustment was made for age at diagnoses, SEI-code (socio-economic index; blue-collar worker, white-collar worker, self-employed, unemployed), and year for diagnosis. Overall results (all ages) have previously been published [12].

	Mobile phone, all			Ipsilateral			Contralateral
	Ca/Co	OR	95% CI	Ca/Co	OR	95% CI	Ca/Co	OR	95% CI
All ages	945/2,148	1.3	1.1–1.6	592/920	1.8	1.4–2.2	316/729	1.1	0.8–1.4
-18-39 years	223/361	1.6	1.02–2.6	139/148	2.2	1.2–3.8	69/116	1.0	0.5–2.0
-40-59 years	446/1,073	1.4	1.03–1.8	282/468	1.8	1.3–2.5	151/361	1.2	0.8–1.7
-60-80 years	276/714	1.2	0.9–1.6	171/304	1.6	1.1–2.3	96/252	1.0	0.7–1.6