From: Tumour risk associated with use of cellular telephones or cordless desktop telephones
Study | Geographical area | Years | Included persons | Response rate |
---|---|---|---|---|
CNS [2,3] | Uppsala/Örebro Stockholm | 1994–1996 1995–1996 | 233 cases* 466 controls | 209 (90%) cases 425 (91%) controls |
CNS [4,5] | Uppsala/Örebro, Stockholm, Linköping, Göteborg | Jan 1, 1997 – June 30, 2000 | 1617 cases 1617 controls | 1429 (88%) cases 1470 (91 %) controls |
CNS, benign [6] | Uppsala/Örebro, Linköping | July 1, 2000 – Dec 31, 2003 | 462 cases** 820 controls | 413 (89 %) cases 692 (84 %) controls |
CNS, malignant [7] | Uppsala/Örebro, Linköping | July 1, 2000 – December 31, 2003 | 359 cases** 820 controls | 317 (88 %) cases 692 (84 %) controls |
Salivary gland tumours [10] | Stockholm, Linköping Uppsala/Örebro Umeå, Göteborg, Lund | Jan 1, 1994 – Dec 31, 1999 Jan 1, 1994 – June 30, 2000 Jan 1, 1994 – June 30, 1999 | 293 cases 1172 controls | 267 (91%) cases 1053 (90%) controls |
Non-Hodgkin lymphoma [11] | Umeå, Örebro, Linköping, Lund | Dec 1, 1999 – April 30, 2002 | 995 cases 1108 controls | 910 (91%) cases 1016 (92%) controls |
Testicular cancer Hardell et al to be published | Whole Sweden | 1993 – 1997 | 981 cases 981 controls | 889 (91%) cases 870 (89%) controls |