Nurses' Health Study I and Nurses' Health Study II


Study Website: Web Site Policy

Number of Enrolled Cancer Patients/Survivors: 9,200 invasive breast cancer in NHS and 2,600 in NHS II (as of 2008)
Years of Diagnoses of Enrolled Cancer Patients/Survivors: 1976 and ongoing for NHS, 1989 and ongoing for NHS II
Approximate Years of Follow-up: Years of follow-up vary and depend upon years of diagnosis
Cancer Sites Represented: All Sites
Biological Specimens Collected: (Collected on some)
Blood/Blood Fraction
Buccal Cells
Germline DNA
Formalin Fixed Tumor Tissue
Treatment Outcome Measures: Physician/Medical Record Reported
  • Death
  • Symptom Assessment
  • Acute Medical Event
  • Late Medical Event
  • Quality of Life (Breast)
  • Cancer Recurrence
  • Death
Co-morbidities at Study Entry: Diabetes
Heart Disease
Pulmonary Disease
Lifestyle Factors: Smoking
Alcohol Use
Physical Activity
Body Mass Index
Weight Loss/Control
Treatment Data: (Breast Cancer: Self-Report)
Hormonal Therapy
Treatment Data Assessed By: Chart Abstraction (for a few)
Patient Reported Questionnaire
Is the study open to collaboration? Yes

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