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Upper limits for exceedance probabilities under the one-way random effects model.

Authors
Krishnamoorthy-K; Mathew-T; Ramachandran-G
Source
Ann Occup Hyg 2007 Jun; 51(4):397-406
NIOSHTIC No.
20033017
Abstract
In this article, we propose statistical methods for setting upper limits on (i) the probability that the mean exposure of an individual worker exceeds the occupational exposure limit (OEL) and (ii) the probability that the exposure of a worker exceeds the OEL. The proposed method for (i) is obtained using the generalized variable approach, and the one for (ii) is based on an approximate method for constructing one-sided tolerance limits in the one-way random effects model. Even though tolerance limits can be used to assess the proportion of exposure measurements exceeding the OEL, the upper limits on these probabilities are more informative than tolerance limits. The methods are conceptually as well as computationally simple. Two data sets involving industrial exposure data are used to illustrate the methods.
Keywords
Statistical-analysis; Epidemiology; Exposure-assessment; Risk-analysis; Exposure-limits; Exposure-methods; Tolerance-threshold
Contact
K. Krishnamoorthy, Department of Mathematics University of Louisiana at Lafayette Lafayette, LA 70504
CODEN
AOHYA3
Publication Date
20070601
Document Type
Journal Article
Email Address
krishna@louisiana.edu
Funding Amount
400453
Funding Type
Grant
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003628; Grant-Number-T42-OH-008434
Issue of Publication
4
ISSN
0003-4878
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Annals of Occupational Hygiene
State
MD; LA; MN
Performing Organization
University of Maryland, Baltimore
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