Physician recommendations vary on when to start and stop mammograms for breast cancer screening — and how often to screen patients in between, according to a new study in the Journal of the American Medical Association Internal Medicine.

Why it matters: Doctor recommendations are one of the most important factors determining whether and when patients get screened for breast cancer. Breast cancer can be detected — and then treated — earlier with mammograms, but there is a risk of false positives and unnecessarily treating the disease. The study "suggests a large proportion of primary care physicians recommend screening mammography for women who are more likely to experience harms than benefits from the examination," per researchers not involved in the study.

Researchers found 81 percent of doctors surveyed recommended women between the ages of 40 and 44 receive mammograms and 88 percent suggested screening to patients aged 45 to 49. That advice counters guidelines from the U.S Preventive Services Task Force that suggests mammography for women should begin at age 50 and should occur every two years.

Go deeper

Updated 19 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 4:30 p.m. ET: 12,128,406 — Total deaths: 551,552 — Total recoveries — 6,650,675Map.
  2. U.S.: Total confirmed cases as of 4:30 p.m. ET: 3,088,913 — Total deaths: 132,934 — Total recoveries: 953,420 — Total tested: 36,979,745Map.
  3. Public health: More young people are spreading the virus Cases rise in 33 statesFlorida reports highest single-day death toll since pandemic began.
  4. Science: World Health Organization acknowledges airborne transmission of coronavirus.
  5. 1 🐂 thing: How the world could monitor for potential pandemic animal viruses.
54 mins ago - Science

More young people are getting — and spreading — the coronavirus

Illustration: Annelise Capossela/Axios

More young people are being infected with the coronavirus, and even though they're less likely to die from it, experts warn the virus' spread among young adults may further fuel outbreaks across the United States.

Why it matters: Some people in their 20s and 30s face serious health complications from COVID-19, and a surge in cases among young people gives the virus a bigger foothold, increasing the risk of infection for more vulnerable people.

Judge asks full appeals court to review panel's dismissal of Flynn case

Photo: Alex Wroblewski/Getty Images

D.C. District Judge Emmet Sullivan on Thursday petitioned for the full D.C. Court of Appeals to rehear a three-judge panel's decision to order the dismissal of the case against former national security adviser Michael Flynn.

Why it matters: The panel's 2-1 decision could be overturned by the full 11-judge appeals court if it decides to take up the en banc review.