Preliminary evaluation of an employer-sponsored mammography screening program

Area of Science:

• Occupational Health
• Public Health
• Medical Screening

Background:

• The Dow Chemical Company established a breast cancer awareness program in 1988.
• Early detection of breast cancer is crucial for effective treatment and improved outcomes.

Purpose of the Study:

• To evaluate the operational aspects of a mammography screening program.
• To assess participation rates and follow-up care within an employee population.
• To determine the utility of group insurance claims data for health services research.

Main Methods:

• Analysis of participation data for 1186 eligible women in the mammography screening program.
• Review of group insurance claims records to track follow-up medical services for women with positive screens.
• Comparison of participation rates between active and retired employees.

Main Results:

• Mammography screening participation was 53%, with active employees showing three times higher participation than retired employees.
• Eleven percent of participants had positive screening results, indicating suspicious areas on mammograms.
• At least 82% of women with positive screens received follow-up medical services within one year.
• Two cases of breast cancer were diagnosed and treated shortly after positive mammograms; no breast cancers were detected in women with negative screens within the subsequent year.

Conclusions:

• Mammography screening programs can identify breast cancer cases early.
• Group insurance claims data are a valuable resource for evaluating healthcare delivery and follow-up adherence.
• Targeted outreach may be necessary to improve screening participation among specific employee groups, such as retirees.