Study type:
Epidemiological study
(observational study)
Exposure to power-frequency magnetic fields and the risk of childhood cancer
epidem.
By:
UK Childhood Cancer Study Investigators
Published in: Lancet 1999; 354 (9194): 1925-1931
Aim of study (acc. to author)
Further details
Endpoint/type of risk estimation
Type of risk estimation:
(odds ratio (OR))
Exposure
Assessment
Exposure groups
|
Group
|
Description
|
|
Reference group 1
|
average mean of magnetic field: < 0.1 µT
|
|
Group 2
|
average mean of magnetic field: < 0.1 - 0.2 µT
|
|
Group 3
|
average mean of magnetic field: ≥ 0.2 µT
|
|
Group 4
|
average mean of magnetic field: 0.2 - < 0.4 µT
|
|
Group 5
|
average mean of magnetic field: ≥ 0.4 µT
|
Population
-
Group:
-
Age:
0–14 years
-
Observation period:
01/1991 - 12/1994 in Scotland, 4/1992 - 12/1994 in Wales and England, 1995 for leukemia and Non-Hodgkin lymphoma, 1996 for leukemia
-
Study location:
UK (England, Scotland and Wales)
Case group
Control group
Study size
|
Cases |
Controls |
| Eligible |
3,938 |
7,629 |
| Participants |
2,423 |
2,416 |
| Evaluable |
2,226 |
2,226 |
Statistical analysis method:
- conditional logistic regression
(
adjustment:
- age
- sex
- residential area
- socioeconomic status
)
Results (acc. to author)
Study funded by
-
Cancer Research Campaign (CRC), UK
-
Children with Leukaemia Foundation, UK
-
Department of Health, UK
-
Electricity Association, UK
-
Electricity Supply Board (ESB), Ireland
-
Imperial Cancer Research Fund (ICRF), UK
-
Kay Kendall Leukaemia Fund (KKLF), UK
-
Leukaemia Research Fund (LRF), UK
-
Medical Research Council, UK
-
National Grid Company plc, UK
-
National Radiological Protection Board (NRPB), UK
-
Scottish Hydro-Electric plc, UK
-
Scottish Nuclear Ltd (SNL), UK
-
Scottish Office, UK
-
ScottishPower plc, UK
-
UK Childhood Cancer Study (UKCCS) paediatric oncologists, UK
-
UK Co-ordinating Committee on Cancer Research (UKCCCR), UK
-
Westlakes Research (Trading) Ltd (WRTL), UK
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