Two-thirds of Americans report that their scheduled cancer screenings, such as mammograms and colonoscopies, have been delayed or skipped in the midst of the COVID-19 crisis, according to the American Society of Clinical Oncology (ASCO)’s fourth annual National Cancer Opinion Survey.

The survey also found that amid a national reckoning over racial equality, nearly six in 10 Americans believe racism can affect the health care a person receives, with Blacks and other racial minorities more likely to hold these views than Whites. Yet few Americans—Black or White—believe there is a relationship between race and cancer survival despite evidence that Blacks have the highest death rate and shortest survival of any racial group for most cancers.

ASCO’s National Cancer Opinion Survey is a large, nationally representative survey conducted by The Harris Poll. This year’s survey was conducted online from July 21 to September 8, 2020, among 4,012 U.S. adults ages 18 and older, including 1,142 adults who currently have or who have had cancer.

“This survey assesses Americans’ perceptions of a wide range of cancer prevention and care issues during a most turbulent time in our country,” said ASCO President Lori Pierce, MD, FASTRO, FASCO. “We set out to capture Americans’ views during a time of both a devastating pandemic and a national movement for racial justice. Our goal is to better understand public perceptions and address urgent needs and opportunities.”

Two-thirds of Americans report delays or cancellations in cancer screenings during the Coronavirus pandemic

Many Americans who were scheduled for a cancer screening reported that it was delayed or cancelled:

  • Among Americans scheduled for a cancer screening test such as a mammogram, colonoscopy, skin check, and Pap/HPV test during the pandemic (more than a third of adults surveyed, or 37%), nearly two-thirds, or 64%, report that it was delayed or cancelled.
  • Among people whose appointments were delayed/cancelled, two-thirds (66%) say it was their choice.
  • A similar percentage (63%) report being concerned about being behind on their cancer screening.

“While delaying recommended screenings for a few months is not necessarily dangerous, our biggest concern is that a significant number of Americans might stop getting preventive care for long periods of time or altogether,” said ASCO Chief Medical Officer Richard L. Schilsky, MD, FACP, FSCT, FASCO. “Cancer screenings are critical for detecting cancer early, and early detection is key to successfully treating many cancers. We need to make sure people continue to get their routine, evidence-based cancer screenings within a reasonable time period.”


At the same time people report delays in cancer screenings, an even longer-term challenge is that most Americans are not incorporating important steps for cancer prevention into their daily lives. For example, as in prior ASCO surveys, fewer than half of respondents say they do the following things to reduce their cancer risk:

  • Using sunblock (48%)/limiting their exposure to the sun without sunblock (47%)
  • Maintaining a healthy weight (47%)
  • Limiting alcohol consumption (42%).

Most Americans believe race can affect health care, with racial minorities more likely to hold these views

Six in 10 Americans (59%) say racism can impact the care a person receives within the U.S. health care system, with differences in opinion along racial lines:

  • Racial and ethnic minorities, including Blacks (76%), Hispanics (70%), and Asians (66%), are more likely than Whites (53%) to say that racism can impact the care a person receives.
  • Similarly, Blacks are significantly more likely than Whites to believe there is unequal access to cancer care in America, with 71% of Black adults saying that Blacks are less likely to have access to the same quality of cancer care as Whites, compared to 47% of White adults.

Despite evidence of worse cancer outcomes for Black Americans, few Americans are aware of the established relationship between race and cancer survival:

  • Fewer than one in five (19%) believes race has an impact on the likelihood a person will survive cancer, with Blacks (27%) and Hispanics (22%) significantly more likely than Whites (16%) to be aware of the link.
  • In addition, more than half of Americans (56%) say a person’s health insurance type or status has an impact on the likelihood they will survive cancer.

“Racism undermines public health, and it specifically affects patients with cancer,” said Pierce. “For almost every cancer, Black Americans fare worse than other racial groups. Now is the time to address the systemic issues of health inequity that negatively impact the health of Blacks and other people of color in our country.”


For information and ASCO’s recommendations on addressing health equity in cancer care, please see ASCO’s recent policy statement on health equity published in the Journal of Clinical Oncology and accompanying editorial by Pierce.


Cancer patients limit contact with others, feel the emotional weight of the pandemic

Eighty-one percent of people with active cancer say they are limiting their contact with others out of fear of contracting COVID-19. Patients with active cancer also report that the pandemic has taken a significant toll on their lives:

  • Six in 10 patients with active cancer (58%) say they have had to make a lot of sacrifices in their daily lives because of a heightened risk of COVID-19. When looking at all patients who have/had cancer, Black patients (61%) are more likely than White patients (47%) to report that they have made a lot of sacrifices.
  • Nearly half of patients with active cancer (45%) say the pandemic has had a negative impact on their mental health.
  • Four in 10 patients with active cancer (42%) say they wish they had more emotional support during the pandemic.

“For people living with the challenges of cancer, the pandemic is adding a layer of hardship above and beyond what they would normally experience—from feelings of isolation to stress and anxiety,” said Pierce. “We urge every American with cancer and their family members to seek out the support they need to the greatest and safest extent possible. Online resources such as ASCO’s patient information website, Cancer.Net, provide COVID resources to help patients cope during this difficult time.”


Despite the majority of Americans’ willingness to participate in cancer clinical trials, misunderstandings about trials are widespread

The survey found that three in four Americans (75%) say they would be willing to participate in a clinical trial for a cancer treatment if they had cancer. However, many have misunderstandings about the benefits of clinical trial participation:

  • Nearly half of all respondents (48%) believe patients with cancer who participate in clinical trials are not receiving the best possible care. In actuality, clinical trials typically provide one of the most advanced treatments available or a treatment believed to be better than the current standard of care. They may offer the best options for initial treatment and, in many cases, when the current standard of care isn’t working for a patient, they may provide a treatment option when no other treatments are available.
  • Three-quarters of Americans (75%), including 87% of patients with cancer, believe that some people who participate in cancer clinical trials receive a placebo rather than actual treatment. The reality is that placebos are extremely rare in cancer clinical trials and are only used when there is no standard treatment available. The vast majority of cancer clinical trials compare a new treatment to the current standard of care.

“Of the nearly two million people who receive a cancer diagnosis each year in the United States, less than five percent of adults enroll in clinical trials,” said Schilsky. “This is due in part to pervasive and persistent myths about trials and concerns that they are only a last resort. We need to do a much better job of educating our patients about the benefits of clinical trials. The fact is that clinical trials often offer patients the best—or sometimes only—treatment option for their condition, and these trials offer hope to individuals and at the same time are also the best way to make progress against cancer for everyone.”

ASCO makes general information about clinical trials available to the public through its patient information website at

To view the full set of findings from ASCO’s National Cancer Opinion Survey, contact Kate Crawford at or visit

This announcement was originally released on October 1, 2020, by the American Society of Clinical Oncology. It is republished with permission.