Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Chronic occupational respiratory disease.

Authors
Attfield-MD; Wagner-GR
Source
Occup Med: State of the Art Rev 1996 Jul; 11(3):451-465
Link
NIOSHTIC No.
00235989
Abstract
Epidemiological issues related to the study of pneumoconiosis among underground coal miners were discussed. Two major studies were the Pneumoconiosis Field Research (PFR) and the National Study of Coal Workers' Pneumoconiosis (NSCWP). Neither study was considered representative of all miners. The study designs discussed included cross sectional, longitudinal, and case/control studies. Both the PFR and the NSCWP began as cross sectional studies. The healthy worker effect and the lack of information concerning disease development were viewed as disadvantages of cross sectional studies. In contrast, the longitudinal study was described as incorporating temporal factors and often providing better exposure data. However, limitations of the longitudinal study included the healthy worker effect and complicated analyses. Case/control studies were considered optimal for the study of rare diseases. Important selection issues were reviewed, such as the inclusion of exminers and nonparticipants in analysis. In estimating the exposure response relationship, cumulative exposure, a function of both dust concentration and exposure duration, was regarded as the most suitable exposure metric for Coal Workers' Pneumoconiosis (CWP). The exposure response models applicable to CWP included the threshold model, the zero risk at zero exposure model, and the nonzero risk at zero exposure model. Issues related to the choice of outcome variable were also mentioned. Exposure estimation was viewed as a critical, albeit weak, aspect of epidemiological study. The widespread use of questionnaires and radiographs presented problems concerning data reliability and validity. The authors conclude that many methodological problems have been overcome in the epidemiological investigations of CWP among coal miners.
Keywords
NIOSH-Author; Humans; Occupational-diseases; Respiratory-system-disorders; Coal-workers; Mine-workers; Epidemiology; Occupational-exposure; Chest-X-rays
CODEN
SAOME4
Publication Date
19960701
Document Type
Journal Article
Editors
Bang-KM
Fiscal Year
1996
NTIS Accession No.
NTIS Price
ISBN No.
9781560532262
Issue of Publication
3
ISSN
0885-114X
NIOSH Division
DRDS
Priority Area
Respiratory-system-disorders
Source Name
Occupational Medicine: State of the Art Reviews. Occupational Epidemiology
State
WV
TOP