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Mammography in a health maintenance organization
J P Hansen1, P A Knapp, P A Newcomb
1Group Health Cooperative, Madison, WI 53715.
American Journal of Public Health
|November 1, 1991
Abstract:
The charts of a random sample of 496 women, aged 51 and older, in a staff model health maintenance organization (HMO) were retrospectively audited for mammography frequency over an 8-year period. Of the 496 women, 306 (61.7%) had at least one mammogram. For the 422 women who had been members of the HMO for at least 2 years, 196 (46.4%) had mammography within the previous 18 months.