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International Journal of Gynecological Cancer:
doi: 10.1097/IGC.0000000000000047
Ovarian Cancer

Ovarian Cancer Incidence in the United States in Relation to Manufacturing Industry

Schwartz, Gary G. MPH, PhD*†‡; Sahmoun, Abe E. PhD§

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Abstract

Objective

Ovarian cancer is primarily a disease of the industrialized world. However, few factors associated with industrialization that contribute to the etiology of ovarian cancer have been identified. We sought to explore factors potentially associated with ovarian cancer by correlating ovarian cancer incidence rates in US states with the distribution of US manufacturing.

Methods

Data on age-adjusted incidence rates for ovarian cancer per state in the United States and manufacturing rates per state were analyzed using multiple linear regression controlling for access to ovarian cancer care, fertility rate, and other potential confounders.

Results

In univariate analyses, ovarian cancer incidence rates were positively correlated with the extent of manufacturing, with dairy production, and with the manufacturing of pulp and paper. Using multiple linear regression, only the correlation of ovarian cancer with pulp and paper manufacturing industry was significant. The correlation of ovarian cancer with pulp and paper manufacturing industry remained significant after adjusting for access to ovarian cancer care, fertility rates, and other potential confounders (P < 0.05).

Conclusions

Pulp and paper mills are associated with exposures to known ovarian carcinogens. Further epidemiological study of exposures involved in the manufacturing of pulp and paper in relation to risk of ovarian cancer is warranted.

Copyright © 2014 by IGCS and ESGO

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