Colon cancer screening campaign erases racial, gender gaps in use of colonoscopy

November 18, 2011, Columbia University

Since the 1970s, U.S. mortality rates due to colorectal cancer have declined overall, yet among blacks and Hispanics, the death rates rose. Evidence suggests that underuse of colonoscopy screening among these groups is one reason for the large disparities. In 2003, New York City launched a multifaceted campaign to improve colonoscopy rates among racial and ethnic minorities and women. A new study conducted by researchers at Columbia University's Mailman School of Public Health and the NYC Department of Health and Mental Hygiene demonstrates the notable success of the campaign. Results show a 20-percentage point jump in colonoscopy screenings among all New Yorkers ages 50 and older and the elimination of disparities across several demographic populations.

Full study findings are published online in the and featured in their highlights of important findings called the Red Section.

Results from the study show that the number of New Yorkers aged 50 years and older who reported at least one colonoscopy within the past 10 years increased from 41.7% in 2003 to 61.7% in 2007. Timely colonoscopy screenings for six categories of New Yorkers – race/ethnicity, sex, insurance status, poverty level, education and age -- show disparities eliminated over the five-year study span among non-Hispanic whites, non-Hispanic blacks and Hispanics as well as a 29-percentage point increase over time for screening among Asians.

While men had a higher rate of colonoscopies when the campaign was introduced in 2003, women closed the gap: their screening rate rose 22.3%, as opposed to a 16.7% increase among men.

The campaign to improve colonoscopy rates in NYC was developed by Department of Health and Mental Hygiene (NYCDOH) in collaboration with the Citywide Colon Cancer Control Coalition. It included media campaigns on subways, ethnic radio stations and at check cashing sites, plus an outreach through the medical community. Health Department epidemiologists, evaluated the effectiveness of the Coalition's campaign to increase screening and were also co-authors of the paper.

Other components included an expanded capacity for colonoscopy at the public hospital system and streamlined colonoscopy referral system.

Data were analyzed from the Community Health Survey (CHS), a population-based, random telephone survey of New Yorkers that has been administered annually since 2002 by the NYC DOHMH.

The study also shows that the affluent and the well-educated continue to have the highest and fastest-growing rates of colonoscopies. Between 2003 and 2007, the greatest increase was among New Yorkers who are U.S.-born, college-educated, 65 years and older, and living at 200% of the federal poverty level or. In 2007, New Yorkers with household incomes below $25,000 had a colonoscopy screening rate of 34%, vs. 59% among those with household incomes above $75,000. Adults with high household incomes—600% of the federal poverty level or more—continued to have a much higher prevalence of timely colonoscopy screening than all other income groups (73.3%).

Over time, disparities for adults with private or government-provided insurance also disappeared. However, those without insurance continued to lag -- 43.3% reported a colonoscopy screening compared to 66.8% of the privately insured, although screening rates among the uninsured were a mere 15% in 2003.

"These analyses show how successful the Health Department and its partners have been in closing the cancer screening gap among racial and ethnic groups across New York City, although the screening rate in the Asian population remained low," said Dr. Bonnie Kerker, senior epidemiology and policy advisor at the Department of Health. "Since this analysis was done, however, the screening rate among Asians has increased from 53.6% percent in 2007 to 66.7 percent in 2010, a rate comparable to that among whites (68.5 percent)."

"Though there are still challenges for the uninsured, we were pleased to see that the New York City's campaign paid off, eliminating racial, ethnic and sex in the use of colonoscopies. " noted Catherine Richards of the Mailman School of Public Health's Department of Epidemiology and lead author of the study. "Still, this improvement will become meaningful only if we see a corresponding reduction in deaths from colon cancer. This will need to be assessed in future studies."

Explore further: Colorectal cancer screening rates on rise among Medicare beneficiaries due to expansion of coverage

Related Stories

Colorectal cancer screening rates on rise among Medicare beneficiaries due to expansion of coverage

May 3, 2011
Colorectal cancer screening rates increased for Medicare beneficiaries when coverage was expanded to average-risk individuals, but racial disparities still exist, according to researchers at The University of Texas Health ...

Study examines whether age for initial screening colonoscopy should be different for men, women

September 27, 2011
An analysis of results of more than 40,000 screening colonoscopies finds that men have a higher rate of advanced tumors compared to women in all age groups examined, suggesting that the age that individuals should undergo ...

Recommended for you

T-cells engineered to outsmart tumors induce clinical responses in relapsed Hodgkin lymphoma

January 16, 2018
WASHINGTON-(Jan. 16, 2018)-Tumors have come up with ingenious strategies that enable them to evade detection and destruction by the immune system. So, a research team that includes Children's National Health System clinician-researchers ...

Researchers identify new treatment target for melanoma

January 16, 2018
Researchers in the Perelman School of Medicine at the University of Pennsylvania have identified a new therapeutic target for the treatment of melanoma. For decades, research has associated female sex and a history of previous ...

More evidence of link between severe gum disease and cancer risk

January 16, 2018
Data collected during a long-term health study provides additional evidence for a link between increased risk of cancer in individuals with advanced gum disease, according to a new collaborative study led by epidemiologists ...

Researchers develop a remote-controlled cancer immunotherapy system

January 15, 2018
A team of researchers has developed an ultrasound-based system that can non-invasively and remotely control genetic processes in live immune T cells so that they recognize and kill cancer cells.

Dietary fat, changes in fat metabolism may promote prostate cancer metastasis

January 15, 2018
Prostate tumors tend to be what scientists call "indolent" - so slow-growing and self-contained that many affected men die with prostate cancer, not of it. But for the percentage of men whose prostate tumors metastasize, ...

Pancreatic tumors may require a one-two-three punch

January 15, 2018
One of the many difficult things about pancreatic cancer is that tumors are resistant to most treatments because of their unique density and cell composition. However, in a new Wilmot Cancer Institute study, scientists discovered ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.