Further results concerning occupational history and tumor laterality in relation to mobile phone use are published in publications 6110 and 9009.
Subjects with a minimum cumulative exposure time of 8 hours one year prior diagnosis were classified as exposed.
|Group 1||latency period > 1 year: total|
|Group 2||latency period > 1 year: < 136 h|
|Group 3||latency period > 1 year: > 136 h|
|Group 4||latency period > 1 year, GSM: total|
|Group 5||latency period > 1 year, GSM: < 88 h|
|Group 6||latency period > 1 year, GSM: > 88 h|
|Group 7||latency period > 1 year, NMT: total|
|Group 8||latency period > 1 year, NMT: < 224 h|
|Group 9||latency period > 1 year, NMT: > 224 h|
|Group 10||latency period > 5 years: total|
|Group 11||latency period > 5 years: < 424 h|
|Group 12||latency period > 5 years: > 424 h|
|Group 13||latency period > 5 years, GSM: total|
|Group 14||latency period > 5 years, GSM: < 292 h|
|Group 15||latency period > 5 years, GSM: > 292 h|
|Group 16||latency period > 5 years, NMT: total|
|Group 17||latency period > 5 years, NMT: < 380 h|
|Group 18||latency period > 5 years, NMT: > 380 h|
|Group 19||latency period > 10 years, NMT: total|
|Group 20||latency period > 10 years, NMT: < 968 h|
|Group 21||latency period > 10 years, NMT: < 968 h|
Use of cellular telephones was reported by 78 cases (37.3 %) and 161 controls (37.9 %). Overall no increased risk for brain tumor among cellular phone users was found. No dose-response effects could be seen when different latency periods were used. Only a non-significantly increased risk for tumor localisation on the same side where the cellular phone had been used was found for analog NMT cellular phones. This result is based on low-numbers und must be interpreted with caution.