Study type:
Epidemiological study
(observational study)
ELF-EMF correlation study on distance from overhead transmission lines and acute leukemia among children in Klang Valley, Malaysia
epidem.
By:
Ba Hakim AS, Abd Rahman NB, Mokhtar MZ, Said IB, Hussain H
Published in: 2014 IEEE Conference on Biomedical Engineering and Sciences (IECBES), Kuala Lumpur, Malaysia. IEEE, 2014: pp. 710-714; ISBN 978-1-4799-4084-4
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
|
magnetic flux density: < 0.3 µT
|
|
Group 2
|
magnetic flux density: > 0.3 µT
|
|
Reference group 3
|
distance between residence and power line: > 200 m
|
|
Group 4
|
distance between residence and power line: < 200 m
|
Population
-
Group:
-
Age:
0–14 years
-
Observation period:
January 2001 - May 2007
-
Study location:
Malaysia (Klang valley)
Case group
-
Characteristics:
acute leukemia, histologically confirmed
-
Data source:
Hospital Universiti Kebangsaan Malaysia and Kuala Lumpur General Hospital, Malaysia
Control group
- patients with an acute disease other than cancer treated in the two hospitals
-
Selection:
-
Matching:
- sex
- age
- case:control = 1:1
Study size
|
Cases |
Controls |
| Eligible |
128 |
128 |
| Evaluable |
108 |
118 |
Statistical analysis method:
- logistic regression
- Chi-square test
Results (acc. to author)
Study funded by
-
Fundamental Research Grant Scheme (FRGS), Malaysia
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