We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Evaluation of Periodic Breast Cancer Screening With Mammography Methodology and Early Observations

Sam Shapiro; Philip Strax, MD; Louis Venet, MD
JAMA. 1966;195(9):731-738. doi:10.1001/jama.1966.03100090065016.
Text Size: A A A
Published online


Periodic breast cancer screening with mammography and clinical examination is being evaluated to determine its value in reducing breast cancer mortality among women. Representative samples of women aged 40 to 64 years enrolled in the Health Insurance Plan of Greater New York are randomly assigned to study and control groups, each of which will contain 30,000 women. Results of the study to date are consistent with the hypothesis that the screening leads to earlier detection of breast cancers than is ordinarily experienced and that mammography contributes significantly to detection. While these relationships are encouraging, they must be viewed with caution since the study is still in its early stages. Furthermore, the crucial question is whether mortality from breast cancer is lowered because of the screening, and definitive findings on this issue will require at least five years of follow-up.


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.