State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (2002-2020)

Incidence, Montana, Colon & Rectum, All Races (incl Hisp), Ages 65+, Both Sexes

Line graph with 19 years and 1 segments
During 2002-2020, the APC¹ in the rate of cancer was falling: -3.7 with a 95% confidence interval from -4.3 to -3.1.
Yearly points:
In 2002, the observed rate was 296.0. The estimated rate was 288.1.
In 2003, the observed rate was 256.6. The estimated rate was 277.4.
In 2004, the observed rate was 265.7. The estimated rate was 267.2.
In 2005, the observed rate was 250.3. The estimated rate was 257.3.
In 2006, the observed rate was 262.6. The estimated rate was 247.8.
In 2007, the observed rate was 234.3. The estimated rate was 238.7.
In 2008, the observed rate was 242.1. The estimated rate was 229.9.
In 2009, the observed rate was 216.6. The estimated rate was 221.4.
In 2010, the observed rate was 230.8. The estimated rate was 213.2.
In 2011, the observed rate was 209.3. The estimated rate was 205.3.
In 2012, the observed rate was 181.8. The estimated rate was 197.7.
In 2013, the observed rate was 189.8. The estimated rate was 190.4.
In 2014, the observed rate was 173.5. The estimated rate was 183.4.
In 2015, the observed rate was 190.9. The estimated rate was 176.6.
In 2016, the observed rate was 164.3. The estimated rate was 170.1.
In 2017, the observed rate was 157.7. The estimated rate was 163.8.
In 2018, the observed rate was 152.7. The estimated rate was 157.8.
In 2019, the observed rate was 159.3. The estimated rate was 152.0.
In 2020, the observed rate was 143.6. The estimated rate was 0.0.

Notes:

Created by statecancerprofiles.cancer.gov on 05/18/2024 9:22 am.
Regression lines calculated using the Joinpoint Regression Program (Version 4.8.0.0).
¹ The APC is the Annual Percent Change over the time interval. Rates used in the calculation of the APC are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+).

Explanation of the Calculation of the Trend:
If the APC is less than -1.5, the trend is falling.
If the APC is between -1.5 and -0.5, the trend is slightly falling.
If the APC is between -0.5 and 0.5, the trend is statistically stable.
If the APC is between 0.5 and 1.5, the trend is slightly rising.
If the APC is greater than 1.5, the trend is rising.
Source: Incidence data provided by the SEER Program and the National Program of Cancer Registries SEER*Stat Database United States Department of Health and Human Services, Centers for Disease Control and Prevention. Rates calculated by the National Cancer Institute using SEER*Stat. Rates are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Population counts for denominators are based on Census populations as modified by NCI. The US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. The US Population Data File is used with SEER data. Rates and trends in this graph are computed using the same standard for malignancy. For more information see malignant.html

Source: Death data provided by the National Vital Statistics System public use data file. Death rates calculated by the National Cancer Institute using SEER*Stat. Death rates (deaths per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: (<1, 1-4, 5-9, ... , 80-84, 85+). Population counts for denominators are based on Census populations as modified by NCI. The US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. US Population Data File is used with mortality data.

Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected racial groups or counties.