|
Odds ratio (OR) and 95 % confidence interval (CI) for brain tumours [4,5]. |
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| > 1 year latency |
> 5 years latency |
> 10 years latency |
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|
|
|||||||||||
| Score |
Ca/Co |
OR |
95 % CI |
Score |
Ca/Co |
OR |
95 % CI |
Score |
Ca/Co |
OR |
95 % CI |
|
|
|||||||||||
| Total |
716/713 |
1.1 |
0.9 – 1.3 |
Total |
321/272 |
1.3 |
1.1 – 1.6 |
Total |
69/51 |
1.6 |
1.1 – 2.3 |
| ≤ 11.0 |
350/357 |
1.0 |
0.9 – 1.3 |
≤ 46.8 |
167/136 |
1.3 |
1.04 – 1.7 |
≤ 166 |
29/26 |
1.2 |
0.7 – 2.1 |
| > 11.0 |
366/356 |
1.1 |
0.9 – 1.3 |
> 46.8 |
154/136 |
1.3 |
0.98 – 1.7 |
> 166 |
40/25 |
1.9 |
1.1 – 3.3 |
|
Score by multiplying weighting factors, analogue= 1, digital = 0.1, cordless telephone = 0.01, with cumulative use in hours for the different phone types and adding all three categories was used. Unconditional logistic regression analysis adjusted for age, gender and socioeconomic index was used. Unexposed groups were used for comparison. Median score among the controls for each latency period used as cut-off. Number of cases (Ca) and controls (Co) is given. | |||||||||||
Hardell et al. World Journal of Surgical Oncology 2006 4:74 doi:10.1186/1477-7819-4-74 |
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