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Assessment of Occupational EMF Exposure - Validation of Interview Procedures Used in Brain Tumor Study


N/A
18 Years
65 Years
Not Enrolling
Both
Brain and Central Nervous System Tumors

Thank you

Trial Information

Assessment of Occupational EMF Exposure - Validation of Interview Procedures Used in Brain Tumor Study


OBJECTIVES:

- Validate an interview-based electric and magnetic field exposure (EMF) assessment
algorithm against measurements of the time-weighted average magnetic field magnitude
used in previous epidemiologic studies.

- Calibrate the parameters in the algorithm in order to improve the exposure estimates.

- Correlate EMF exposure estimates from the algorithm with biologically based metrics
measured by new instrumentation.

OUTLINE: Participants respond to questions during a 5- to 15-minute telephone interview
concerning workplace exposure to electric and magnetic (EMF) fields. Data is collected
during the interview using an exposure assessment algorithm designed to estimate EMF
workplace exposure based on participants' responses. The interview-based estimates are then
validated against actual field measurements of magnetic field exposure captured by Emdex
multiwave monitors located at participating sites.

Inclusion Criteria


DISEASE CHARACTERISTICS:

- Meets 1 of the following occupation criteria:

- Three occupations that primarily work in offices at Lawrence Livermore National
Laboratories (LLNL)

- Three occupations that do nonelectric manual work (e.g., machinists and
laborers) at LLNL

PATIENT CHARACTERISTICS:

- Not specified

PRIOR CONCURRENT THERAPY:

- Not specified

Type of Study:

Observational

Study Design:

N/A

Outcome Measure:

Validation of an interview-based electric and magnetic field (EMF) exposure assessment algorithm

Principal Investigator

Joseph Coble, DSc

Investigator Role:

Study Chair

Investigator Affiliation:

National Cancer Institute (NCI)

Authority:

United States: Federal Government

Study ID:

99906013

NCT ID:

NCT00340054

Start Date:

October 2005

Completion Date:

March 2007

Related Keywords:

  • Brain and Central Nervous System Tumors
  • brain tumor
  • Nervous System Neoplasms
  • Central Nervous System Neoplasms

Name

Location

Exponent, Inc.Menlo Park, California  94025
National Institute for Occupational Safety and HealthCincinnati, Ohio  45226