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Woodbury, according to a Feb. 17, 1992, letter to Ms. Barie Carmichael, was an epidemiologist for DOW.
Along with
Ralph R. Cook, M.D. M.P.H, Robert R. Delongchamp, M.P.H., Laura L. Perkins, M.S.-PhD., Myron C. Harrison, M.D. M.P.H., authored
a report from the Departments of Epidemiology and Health Services of the Dow Corning Corporation in 1989. It is 19 pages long.
Disk 120 file 8223
According to their report, "it was estimated by the National Center for Health Statistics
(NCHS), in conjunction with the FDA Center for Devices and Radiological Health, that there were 620,000 silicone implants
in 1988, about 90% of which were breast implants, and three fourths of these were in women between the ages of 18 and 44.
Even though the NCHS survey over sampled minorities, about 98.5% of those with breast implants were White."
"In
1981, The Dow Corning Corporation contracted with a commercial firm, Market Facts, Inc. to conduct a mail survey designed
to estimate the prevalence of breast implants in U.S. women. At the time, the survey company maintained a Consumer Mail Panel,
a nation wide sample of about 270,000 households."
"For the implant survey, 40,000 households selected
from the Consumer Mail Panel to be representative of the total population were mailed a short questionnaire in Oct. 1989."
"In 1989, there were approximately 100,953,000 women 15 years of age and older in the US of whom 85,678,000 were
White. Using the prevalence rate for all women (8.08 per 1,000), it was estimated that 815,700 women in the US had implants
in 1989 95%CI: 715,757-924,729). Among Whites, it was estimated that 701,703 women in the US had implants in 1989 (95%CI:
613,454-797,662). Using the NCHS estimate that 98.5% of all breast implants were in Whites and our estimate of the number
of White women with the devices, yields and alternative number of 712,389 (95% CI: 622,796-809,796) for the total number of
women in the US with breast implants."
"In summary, within the constraints of this survey, it is estimated
that 815,700 women in the United States had silicone gel or saline breast implants in 1989."
Ralph R. Cook,
M.D. M.P.H.
Directory of Epidemiology
Mail #CO1120
The Dow Corning Corporation
Midland, Michigan 48686-0994
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