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An Expanded Cohort Study of Cancer among Benzene-Exposed Workers in China
Author(s) -
Song Yin,
Richard B. Hayes,
Martha S. Linet,
Gui-Lan Li,
Mustafa Dosemeci,
Lois B. Travis,
Zhi-Nan Zhang,
De-Gao Li,
Wong-Ho Chow,
Sholom Wacholder,
William J. Blot,
The Benzene Study Group
Publication year - 1996
Publication title -
environmental health perspectives
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.257
H-Index - 282
eISSN - 1552-9924
pISSN - 0091-6765
DOI - 10.2307/3433187
Subject(s) - environmental health , cohort study , cohort , china , medicine , toxicology , biology , geography , archaeology
An expanded cohort study of 74,828 benzene-exposed and 35,805 unexposed workers were followed during 1972 to 1987, based on a previous study in 12 cities in China. A small increase was observed in total cancer mortality among benzene-exposed compared with unexposed workers (relative risk [RR] = 1.2). Statistically significant excesses were noted for leukemia (RR = 2.3), malignant lymphoma (RR = 4.5), and lung cancer (RR = 1.4). When risks were evaluated by leukemia subtype, only acute myelogenous leukemia was significantly elevated (RR = 3.1), although nonsignificant excesses were also noted for chronic myelogenous leukemia (RR = 2.6) and acute lymphocytic leukemia (RR = 2.3). A significant excess was also found for aplastic anemia.

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