Data Collection Variables
Patient Demographic and Health History Data
- Demographic Variables
- Unique identification number
- Zip code
- Date of birth
- Race (white, black, Asian or Pacific Islander, Native American, other); ethnicity (Hispanic)
- Education (less than high school, high school/GED, some college, college or post-college grad
- Health insurance (Medicare, Medicaid, other, none)
- Health History
- First-degree family history of breast cancer (mother, sister, daughter) and age: <50, >50
- Personal history of breast cancer (yes, no)
- Personal history of breast biopsy, surgery, or radiation (yes, no)
- Procedure history per breast (implants, needle biopsy, surgical biopsy, lumpectomy, mastectomy, radiation therapy, and reconstruction)
- Screening History
- Ever screened by mammography (yes, no)
- Time since last mammogram
- Current Health
- Menstrual periods, stopped due to surgery?
- Hormone use at time of examination; type of hormones, length of use
- Ovaries removed, number removed
- Height/Weight
- Presence of symptoms in last 3 months (pain, nipple discharge or lump; right or left breast)
- Radiologic Site and Interpreting Mammographer Identification
- Variables are encrypted to protect confidentiality.
- Dates of Current Examination and Comparison Film
- Use of Comparison Mammogram at Time of Evaluation (yes, no)
- Indication for Examination
- Screening (asymptomatic), evaluation of breast problem (symptomatic), additional evaluation of recent mammogram, short interval follow-up
- Type of Examination(s) Performed
- Standard screening views, additional diagnostic views, sonography, other breast imaging
- Breast Density (American College of Radiology lexicon)
- Entirely fat, scattered fibroglandular densities, heterogeneously dense, extremely dense
- Assessment per Woman
- Incomplete assessment, normal, normal with benign finding, probably benign, suspicious abnormality, highly suggestive for malignancy
- Mammographic Findings (calcifications, assymmetry, masses, architectural distortion)
- Recommendation
- Mammography in normal interval follow-up, additional views, sonography, short-term follow-up, fine-needle aspiration, core biopsy, consider biopsy or surgical evaluation, clinical evaluation for further diagnostic evaluation
Follow-Up Data
- Follow-Up Performed (summarized per woman)
- Date and result (include right versus left breast): additional views, short-interval follow-up mammogram
- Date and laterality required, laterality result recorded if available: clinical examination, sonography, fine-needle aspiration, core biopsy, excisional biopsy
- Pathologic Variables
- Carcinoma pathology (as obtained in SEER registries)
- Type of procedure, reporting source, laterality
- Staging: size, histopathology, grade, tumor size, number of positive nodes, metastasis present (TNM), American Joint Committee on Cancer stage, extension*, nodal involvement* (number examined and postive), tumor sequence*, estrogen and progesterone receptor status*
- Therapy (data first initiated): surgery, radiation, chemotherapy, hormonal, biologic modification, no surgery reason*
- Follow-up status*: date of last follow-up, vital status last follow-up*, cause of death
- Benign pathology*
- Type of Procedure
- Reporting source
- Laterality
- Histopathology (as recorded and also categorized into major groups: atypical hyperplasia, ductal hyperplasia, fibroadenoma, phyllodes tumor, benign, normal, inconclusive
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