This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A recent magazine article stated that bone mineral density (BMD) may one day predict breast cancer ... (Read 159 times)

sarasara

  • Hero Member
  • *****
  • Posts: 521
on: Jul 24, 2018
A recent magazine article stated that bone mineral density (BMD) may one day predict breast cancer risk in older women, according to a study in the Journal of the National Cancer Institute. Researchers followed the health of 8,905 women who were 65 or older and initially cancer free. Eventually 315 participants developed breast cancer. Women with the highest BMD were almost three times more likely to develop breast cancer, compared to the women with low BMD. Explain why it is not possible to conduct a randomized experiment in this situation.

Question 2

A recent magazine article stated that bone mineral density (BMD) may one day predict breast cancer risk in older women, according to a study in the Journal of the National Cancer Institute. Researchers followed the health of 8,905 women who were 65 or older and initially cancer free. Eventually 315 participants developed breast cancer. Women with the highest BMD were almost three times more likely to develop breast cancer, compared to the women with low BMD. Do the results of this study mean that a high bone mineral density (BMD) causes breast cancer in older women? Explain your answer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bigsis44

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 24, 2018
Answer to Question 1

IT IS NOT POSSIBLE TO RANDOMLY ASSIGN WOMEN TO EITHER A LOW OR HIGH BMD; IT WOULD ALSO BE UNETHICAL TO FORCIBLY CREATE A HIGH BMD FOR A GROUP OF WOMEN AND SEE IF THIS INCREASES THEIR CHANCES OF DEVELOPING BREAST CANCER.

Answer to Question 2

NO; IT IS JUST PREDICTIVE AT THIS POINT. THIS WAS AN OBSERVATIONAL STUDY, AND THERE COULD BE MANY CONFOUNDING VARIABLES.


sarasara

  • Member
  • Posts: 521
Reply 2 on: Jul 24, 2018
Excellent

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

In The Gross Clinic (1875), by Thomas Eakins, Professor Samuel Gross’s team of surgeons cuts through In The Gross Clinic (1875), by Thomas Eakins, Professor Samuel Gross’s team of surgeons cuts through
The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ... The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ...
Case of ONJ that occurred spontaneously. Note the white area, which is exposed necrotic bone. Case of ONJ that occurred spontaneously. Note the white area, which is exposed necrotic bone.
Human civilization developed during the most recent interglacial stage Human civilization developed during the most recent interglacial stage
Breast-Feeding Mothers Have Increased Nutrient Needs Breast-Feeding Mothers Have Increased Nutrient Needs
Physics - Pressure, Density, Pascal's Principle Physics - Pressure, Density, Pascal's Principle
Video: Role of transport in a cell

For a complete list of videos, visit our video library