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Interpretation of Incidence Rates Data

Incidence Rate Report for Montana by County

All Races (includes Hispanic), Both Sexes, Colon & Rectum, All Ages
Sorted by Rate

Explanation of Column Headers

Incidence Rate (95% Confidence Interval) - The incidence rate is based upon 100,000 people and is an annual rate (or average annual rate) based on the time period indicated. Rates are age-adjusted by 5-year age groups to the 2000 U.S. standard million population.

Other Notes

  • Larger confidence intervals indicate less stability of the data. This is often due to low counts that are not quite low enough to be suppressed.
  • Data is currently being suppressed if there are fewer than 16 counts for the time period.


    Line by Line Interpretation of the Report


    Montana6,10
    • Rate : The incidence rate is 43.4 with a 95% confidence interval from 41.7 to 45.1.
    • Average Annual Count : The count is 511.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -4.4
    US (SEER+NPCR)1,10
    • Rate : The incidence rate is 43.3 with a 95% confidence interval from 43.2 to 43.4.
    • Average Annual Count : The count is 142,173 §.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : falling falling trend
    • Recent AAPC : -4.1
    Fallon County6,10
    • Rate : The incidence rate is 98.2 with a 95% confidence interval from 59.7 to 155.6.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -28.3
    Musselshell County6,10
    • Rate : The incidence rate is 77.4 with a 95% confidence interval from 48.6 to 119.4.
    • Average Annual Count : The count is 5.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : rising rising trend
    • Recent AAPC : 30
    Roosevelt County6,10
    • Rate : The incidence rate is 70.3 with a 95% confidence interval from 48.6 to 98.3.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 1.8
    Richland County6,10
    • Rate : The incidence rate is 69.3 with a 95% confidence interval from 49.7 to 94.7.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -25.3
    Custer County6,10
    • Rate : The incidence rate is 63.7 with a 95% confidence interval from 46.5 to 85.5.
    • Average Annual Count : The count is 10.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -3.5
    Phillips County6,10
    • Rate : The incidence rate is 62.8 with a 95% confidence interval from 39.0 to 99.6.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 6.8
    Glacier County6,10
    • Rate : The incidence rate is 62.3 with a 95% confidence interval from 44.0 to 85.6.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -13.2
    Hill County6,10
    • Rate : The incidence rate is 60.2 with a 95% confidence interval from 44.4 to 79.8.
    • Average Annual Count : The count is 10.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -10.9
    Jefferson County6,10
    • Rate : The incidence rate is 55.2 with a 95% confidence interval from 36.6 to 79.9.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -13.3
    Rosebud County6,10
    • Rate : The incidence rate is 52.7 with a 95% confidence interval from 33.3 to 79.2.
    • Average Annual Count : The count is 5.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 7.6
    Lake County6,10
    • Rate : The incidence rate is 52.1 with a 95% confidence interval from 42.0 to 64.1.
    • Average Annual Count : The count is 20.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -1.8
    Big Horn County6,10
    • Rate : The incidence rate is 51.9 with a 95% confidence interval from 34.7 to 74.6.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.4
    Valley County6,10
    • Rate : The incidence rate is 51.6 with a 95% confidence interval from 35.0 to 75.2.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 6.8
    Stillwater County6,10
    • Rate : The incidence rate is 49.9 with a 95% confidence interval from 33.5 to 72.5.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.6
    Deer Lodge County6,10
    • Rate : The incidence rate is 49.4 with a 95% confidence interval from 33.8 to 70.9.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -0.7
    Chouteau County6,10
    • Rate : The incidence rate is 49.3 with a 95% confidence interval from 29.0 to 79.5.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -23.6
    Teton County6,10
    • Rate : The incidence rate is 49.3 with a 95% confidence interval from 30.0 to 77.9.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : rising rising trend
    • Recent AAPC : 40.3
    Silver Bow County6,10
    • Rate : The incidence rate is 49.2 with a 95% confidence interval from 40.0 to 60.0.
    • Average Annual Count : The count is 21.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -10.6
    Blaine County6,10
    • Rate : The incidence rate is 49.1 with a 95% confidence interval from 29.9 to 77.0.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -25.9
    Cascade County6,10
    • Rate : The incidence rate is 48.9 with a 95% confidence interval from 42.8 to 55.6.
    • Average Annual Count : The count is 48.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -10.9
    Fergus County6,10
    • Rate : The incidence rate is 47.8 with a 95% confidence interval from 34.7 to 65.4.
    • Average Annual Count : The count is 9.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -6.9
    Powell County6,10
    • Rate : The incidence rate is 47.8 with a 95% confidence interval from 29.6 to 74.1.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 22.6
    Broadwater County6,10
    • Rate : The incidence rate is 46.6 with a 95% confidence interval from 26.9 to 76.9.
    • Average Annual Count : The count is 3.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 35.1
    Lewis and Clark County6,10
    • Rate : The incidence rate is 46.2 with a 95% confidence interval from 39.2 to 54.1.
    • Average Annual Count : The count is 33.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -6.9
    Pondera County6,10
    • Rate : The incidence rate is 43.3 with a 95% confidence interval from 25.6 to 70.1.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 5.7
    Beaverhead County6,10
    • Rate : The incidence rate is 42.9 with a 95% confidence interval from 27.8 to 64.1.
    • Average Annual Count : The count is 5.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 3.2
    Lincoln County6,10
    • Rate : The incidence rate is 41.3 with a 95% confidence interval from 31.1 to 54.4.
    • Average Annual Count : The count is 12.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 0.7
    Yellowstone County6,10
    • Rate : The incidence rate is 41.1 with a 95% confidence interval from 36.8 to 45.7.
    • Average Annual Count : The count is 70.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -3.6
    Flathead County6,10
    • Rate : The incidence rate is 39.7 with a 95% confidence interval from 34.4 to 45.7.
    • Average Annual Count : The count is 42.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -5.3
    Dawson County6,10
    • Rate : The incidence rate is 37.7 with a 95% confidence interval from 24.1 to 57.4.
    • Average Annual Count : The count is 5.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 10.1
    Gallatin County6,10
    • Rate : The incidence rate is 36.6 with a 95% confidence interval from 30.6 to 43.5.
    • Average Annual Count : The count is 28.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : falling falling trend
    • Recent AAPC : -12.1
    Missoula County6,10
    • Rate : The incidence rate is 34.0 with a 95% confidence interval from 29.2 to 39.5.
    • Average Annual Count : The count is 37.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 1.4
    Sanders County6,10
    • Rate : The incidence rate is 33.7 with a 95% confidence interval from 23.1 to 49.1.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : falling falling trend
    • Recent AAPC : -18.6
    Ravalli County6,10
    • Rate : The incidence rate is 32.2 with a 95% confidence interval from 25.6 to 40.1.
    • Average Annual Count : The count is 18.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -4.5
    Carbon County6,10
    • Rate : The incidence rate is 31.0 with a 95% confidence interval from 19.1 to 48.7.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -2.3
    Madison County6,10
    • Rate : The incidence rate is 30.3 with a 95% confidence interval from 18.1 to 49.8.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -13.8
    Park County6,10
    • Rate : The incidence rate is 30.2 with a 95% confidence interval from 20.8 to 43.1.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -6.5
    Carter County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Daniels County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Garfield County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Golden Valley County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Granite County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Judith Basin County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Liberty County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    McCone County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Meagher County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Mineral County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Petroleum County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Powder River County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Prairie County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Sheridan County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Sweet Grass County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Toole County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Treasure County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Wheatland County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *
    Wibaux County6,10
    • Rate : *
    • Average Annual Count : *
    • Rate Period : *
    • Recent Trend : *
    • Recent AAPC : *


    Notes:
    Created by statecancerprofiles.cancer.gov on 11/01/2014 2:55 am.
    Data for the United States does not include data from Nevada.
    State Cancer Registries may provide more current or more local data.
    † Incidence rates (cases 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+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The 1969-2012 US Population Data File is used for SEER and NPCR incidence rates.
    § The total count for the US (SEER+NPCR) may differ from the summation of the individual states reported in this table. The total uses data from the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission for the following states: California, Kentucky, Louisiana, and New Jersey but data for those states when shown individually are sourced from the SEER November 2013 submission.
    * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

    1 Source: CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2014 data submission and SEER November 2013 submission.
    6 Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2014 data submission. State rates include rates from metropolitan areas funded by SEER.
    10 Source: Incidence data provided by the National Program of Cancer Registries (NPCR). EAPCs 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 1969-2012 US Population Data File is used with NPCR January 2014 data.

    Please note that the data comes from different sources. Due to different years of data availablility, most of the trends are AAPCs based on APCs but some are EAPCs calculated in SEER*Stat. Please refer to the source for each graph for additional information.

    Interpret Rankings provides insight into interpreting cancer incidence statistics. When the population size for a denominator is small, the rates may be unstable. A rate is unstable when a small change in the numerator (e.g., only one or two additional cases) has a dramatic effect on the calculated rate.

    Suppression is used to avoid misinterpretation when rates are unstable.