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State of Alaska

Health Indicator Report of Cancer - Colorectal Cancer Incidence

Colorectal cancer is the third most common cancer found in men (after prostate and lung) and in women (after breast and lung) in the country. It is estimated that there will be 140,250 new cases of colorectal cancer and 50,630 deaths in the U.S. during 2018. The risk of developing colorectal cancer is about 1 in 22 (4.5%) for men and 1 in 24 (4.2%) for women.^1^ Thanks to colorectal screening using colonoscopy and sigmoidoscopy procedures, polyps can be found and removed before they turn into cancer. Screening enables colorectal cancer to be found earlier when it is easier to treat.^1^ Risk factors for colorectal cancer include old age (about 90% of people with colorectal cancer are over age 50), diets high in red meats and processed meats, physical inactivity, obesity, smoking, and heavy alcohol use. Other risk factors include a personal history of type 2 diabetes, inflammatory bowel disease, colorectal polyps, or previous colorectal cancer, as well as a family history of colorectal cancer.^2^ Incidence rates tell us about the rate at which new cases of a condition occur. As such, the incidence rate of colorectal cancer is an important indicator of the burden of this type of cancer in Alaska, allowing us to monitor how this burden changes over time and also to compare this burden among sub-populations.[[br]] [[br]] ---- {{class .SmallerFont 1. [http://www.cancer.org/cancer/colonandrectumcancer/detailedguide/colorectal-cancer-key-statistics Key statistics for colorectal cancer] [[br]] 2. [http://www.cancer.org/cancer/colonandrectumcancer/detailedguide/colorectal-cancer-risk-factors Colorectal cancer risks] }}

Notes

Click on the icon to the lower right of the graph to display confidence intervals. [[br]] Rates are age-adjusted to the 2000 U.S. standard population. [[br]] Numerator is the number of cases.

Data Sources

  • [http://dhss.alaska.gov/dph/Chronic/Pages/Cancer/registry.aspx Alaska Cancer Registry], Health Analytics and Vital Records Section (HAVRS), Division of Public Health, Alaska Department of Health and Social Services
  • North American Association of Central Cancer Registries (NAACCR), CiNA analytic public use file, accessed via SEER*Stat software. Includes incidence data from CDC's National Program of Cancer Registries (NPCR) and NCI's SEER registries.

Data Interpretation Issues

Cancer cases do not include in situ. Mortality rates may vary from source to source. This may be due to using provisional data or using different population databases. The cancer mortality rates provided by the [http://dhss.alaska.gov/dph/chronic/pages/cancer/registry.aspx Alaska Cancer Registry] use population estimates provided by the [http://seer.cancer.gov/ Surveillance, Epidemiology, and End Results Program (SEER)] of the [http://www.cancer.gov/ National Cancer Institute]. In contrast, [http://dhss.alaska.gov/dph/VitalStats/Pages/data/default.aspx Alaska Vital Statistics] uses [http://live.laborstats.alaska.gov/pop/index.cfm population estimates] provided by the State Demographer in the [http://laborstats.alaska.gov/ Research and Analysis Section] of the [http://labor.alaska.gov/ Alaska Department of Labor and Workforce Development].

Definition

Rate of newly reported cases of colorectal cancer per 100,000 population.

Numerator

Number of newly reported cases of colorectal cancer for a specific time period.

Denominator

Mid-year resident population for a specific time period.

Healthy People Objective: Reduce invasive colorectal cancer

U.S. Target: 38.6 new cases per 100,000 population

How Are We Doing?

Colorectal cancer in Alaska is ranked #4 for the number of cancer incident cases in the time period of 2011-2015. Over the past decade, rates of colorectal cancer in Alaska and the U.S. have declined. In Alaska, colorectal cancer incidence rates for men are consistently higher than for women, and men are on average 1.2 times more likely to develop the disease. In 2015, the colorectal cancer incidence rate for men was 47.0 per 100,000 males, compared to the rates for women of 37.4 per 100,000 females. Around the state for 1996-2015, the incidence rate for colorectal cancer ranged from a high of 106.4 per 100,000 population in North Slope Borough to a low of 25.8 in Aleutians East Borough. There were several borough/census areas for which rates were not calculated because they had less than 6 cases. By race for 1996-2015, Alaska Natives had a much higher incidence rate of colorectal cancer than any other race at 96.3 per 100,000 population, compared to 45.9 for Blacks, 42.8 for Whites, and 32.7 for Asians/Pacific Islanders.

How Do We Compare With the U.S.?

Alaska has had consistently higher rates of colorectal cancer than the U.S., and both rates are decreasing with time. In 2015, Alaska's colorectal cancer incidence rate was 42.5 per 100,000 population, compared to the U.S. rate of 38.5.
Page Content Updated On 05/30/2018, Published on 05/30/2018
The information provided above is from the Alaska Department of Health and Social Services' Center for Health Data and Statistics, Alaska Indicator-Based Information System for Public Health (Ak-IBIS) web site (http://ibis.dhss.alaska.gov). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Tue, 20 November 2018 from Alaska Department of Health and Social Services, Center for Health Data and Statistics, Alaska Indicator-Based Information System for Public Health web site: http://ibis.dhss.alaska.gov ".

Content updated: Wed, 30 May 2018 15:42:05 AKDT
The information provided above is from the Alaska Department of Health and Social Services' Center for Health Data and Statistics AK-IBIS web site (http://ibis.dhss.alaska.gov/). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Tue, 20 November 2018 16:46:53 from Alaska Department of Health and Social Services, Center for Health Data and Statistics, Indicator-Based Information System for Public Health Web site: http://ibis.dhss.alaska.gov/ ".

Content updated: Wed, 30 May 2018 15:42:05 AKDT