RE: "LUNG CANCER AMONG INDUSTRIAL SAND WORKERS EXPOSED TO CRYSTALLINE SILICA"

Re: "Lung cancer among industrial sand workers exposed to crystalline silica".

Am J Epidemiol Vol. 154, No. 3, 2001 portions.” (Letter). Am J Epidemiol 2001;154:287. 2. Schaid DJ, Jacobsen SJ. Biased tests of association: comparisons of allele frequencies when departing from HardyWeinberg proportions. Am J Epidemiol 1999;149:706–11. 3. Armitage P. Tests for linear trends in proportions and frequencies. Biometrics 1955;11:375–86. Daniel J. Schaid Steven J. Jacobsen Departm...

Multifactorial aetiology of lung cancer among silica-exposed workers.

In 1997, the International Agency for Research on Cancer (IARC) upgraded its evaluation of crystalline silica to a Group 1 human carcinogen. Criticism against such decision is based on the lack of consistency in experimental results across animal species, violation of an important principle for causality, such as the replication of findings under different circumstances of exposure, and the lac...

Mortality in the UK industrial silica sand industry: 1. Assessment of exposure to respirable crystalline silica.

AIMS To develop a job-exposure matrix (JEM) from personal and static respirable crystalline silica (RCS) measurements in UK industrial silica sand workers. METHODS A total of 2429 personal and 583 static RCS dust samples were collected using cyclone samplers at seven UK quarries between 1978 and 2000. These data were combined, and analysis of variance using general linear models was used to e...

Re: Lung cancer risk among female textile workers exposed to endotoxin.

Lung cancer risk among female textile workers exposed to endotoxin.

BACKGROUND Reduced risk of lung cancer among workers in the cotton textile industry has been observed since the 1970s. Bacterial endotoxin, a contaminant of raw cotton fiber and cotton dust, has been proposed as a protective agent that may act through the innate and acquired immune systems. We examine the association between endotoxin exposure and lung cancer risk in a cohort of female textile ...