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Interpretation of Incidence Rates Data

Incidence Rate Report for Montana by County

All Races (includes Hispanic), Female, Breast, 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 125.8 with a 95% confidence interval from 121.7 to 130.0.
    • Average Annual Count : The count is 755.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 1.2
    US (SEER+NPCR)1,10
    • Rate : The incidence rate is 122.7 with a 95% confidence interval from 122.4 to 122.9.
    • Average Annual Count : The count is 216,052 §.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -0.4
    Carbon County6,10
    • Rate : The incidence rate is 85.5 with a 95% confidence interval from 58.4 to 123.5.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 5.5
    Glacier County6,10
    • Rate : The incidence rate is 87.8 with a 95% confidence interval from 58.3 to 126.9.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 22.7
    Custer County6,10
    • Rate : The incidence rate is 91.6 with a 95% confidence interval from 64.1 to 128.1.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 1.9
    Lincoln County6,10
    • Rate : The incidence rate is 94.3 with a 95% confidence interval from 72.8 to 121.4.
    • Average Annual Count : The count is 14.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : falling falling trend
    • Recent AAPC : -23.7
    Deer Lodge County6,10
    • Rate : The incidence rate is 94.9 with a 95% confidence interval from 62.7 to 140.2.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -16.8
    Fergus County6,10
    • Rate : The incidence rate is 97.2 with a 95% confidence interval from 70.5 to 132.8.
    • Average Annual Count : The count is 9.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 8.7
    Sheridan County6,10
    • Rate : The incidence rate is 99.3 with a 95% confidence interval from 55.7 to 177.1.
    • Average Annual Count : The count is 3.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -2.2
    Jefferson County6,10
    • Rate : The incidence rate is 107.8 with a 95% confidence interval from 75.4 to 151.0.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -7.3
    Madison County6,10
    • Rate : The incidence rate is 108.2 with a 95% confidence interval from 71.6 to 160.4.
    • 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
    Phillips County6,10
    • Rate : The incidence rate is 108.9 with a 95% confidence interval from 61.4 to 184.9.
    • Average Annual Count : The count is 3.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 18.1
    Broadwater County6,10
    • Rate : The incidence rate is 111.8 with a 95% confidence interval from 68.4 to 176.3.
    • 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
    Sanders County6,10
    • Rate : The incidence rate is 113.6 with a 95% confidence interval from 83.4 to 153.5.
    • Average Annual Count : The count is 10.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.7
    Powell County6,10
    • Rate : The incidence rate is 114.4 with a 95% confidence interval from 72.0 to 177.3.
    • Average Annual Count : The count is 5.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -2.6
    Ravalli County6,10
    • Rate : The incidence rate is 115.8 with a 95% confidence interval from 98.4 to 135.9.
    • Average Annual Count : The count is 34.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -5.7
    Musselshell County6,10
    • Rate : The incidence rate is 116.6 with a 95% confidence interval from 68.4 to 191.6.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 0.5
    Silver Bow County6,10
    • Rate : The incidence rate is 117.5 with a 95% confidence interval from 97.9 to 140.2.
    • Average Annual Count : The count is 27.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -2.3
    Roosevelt County6,10
    • Rate : The incidence rate is 118.8 with a 95% confidence interval from 80.9 to 168.5.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -11.1
    Lewis and Clark County6,10
    • Rate : The incidence rate is 120.2 with a 95% confidence interval from 104.7 to 137.5.
    • Average Annual Count : The count is 46.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -10.8
    Yellowstone County6,10
    • Rate : The incidence rate is 122.4 with a 95% confidence interval from 112.1 to 133.3.
    • Average Annual Count : The count is 109.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 0.3
    Valley County6,10
    • Rate : The incidence rate is 126.4 with a 95% confidence interval from 84.2 to 184.1.
    • Average Annual Count : The count is 7.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 4.6
    Hill County6,10
    • Rate : The incidence rate is 127.3 with a 95% confidence interval from 94.3 to 168.0.
    • Average Annual Count : The count is 11.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 20.9
    Flathead County6,10
    • Rate : The incidence rate is 128.2 with a 95% confidence interval from 114.7 to 142.8.
    • Average Annual Count : The count is 70.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.6
    Mineral County6,10
    • Rate : The incidence rate is 128.5 with a 95% confidence interval from 73.6 to 213.9.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -0.6
    Big Horn County6,10
    • Rate : The incidence rate is 129.2 with a 95% confidence interval from 91.7 to 176.9.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 20.1
    Sweet Grass County6,10
    • Rate : The incidence rate is 129.8 with a 95% confidence interval from 69.5 to 225.1.
    • Average Annual Count : The count is 3.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.8
    Missoula County6,10
    • Rate : The incidence rate is 130.8 with a 95% confidence interval from 117.3 to 145.4.
    • Average Annual Count : The count is 73.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 3.6
    Lake County6,10
    • Rate : The incidence rate is 131.3 with a 95% confidence interval from 107.9 to 158.6.
    • Average Annual Count : The count is 24.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -4.2
    Toole County6,10
    • Rate : The incidence rate is 133.0 with a 95% confidence interval from 77.1 to 215.2.
    • Average Annual Count : The count is 4.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 14.9
    Cascade County6,10
    • Rate : The incidence rate is 138.1 with a 95% confidence interval from 123.6 to 153.8.
    • Average Annual Count : The count is 70.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 10.4
    Beaverhead County6,10
    • Rate : The incidence rate is 138.5 with a 95% confidence interval from 96.0 to 194.3.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : falling falling trend
    • Recent AAPC : -13.6
    Gallatin County6,10
    • Rate : The incidence rate is 143.2 with a 95% confidence interval from 126.6 to 161.3.
    • Average Annual Count : The count is 57.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 6.1
    Park County6,10
    • Rate : The incidence rate is 146.8 with a 95% confidence interval from 115.9 to 184.3.
    • Average Annual Count : The count is 16.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 2.5
    Blaine County6,10
    • Rate : The incidence rate is 148.9 with a 95% confidence interval from 97.6 to 218.3.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 6.4
    Richland County6,10
    • Rate : The incidence rate is 152.4 with a 95% confidence interval from 108.2 to 209.2.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 4.5
    Pondera County6,10
    • Rate : The incidence rate is 153.8 with a 95% confidence interval from 102.3 to 223.3.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -0.8
    Chouteau County6,10
    • Rate : The incidence rate is 154.5 with a 95% confidence interval from 103.7 to 224.2.
    • Average Annual Count : The count is 6.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -1.8
    Rosebud County6,10
    • Rate : The incidence rate is 160.9 with a 95% confidence interval from 113.5 to 221.8.
    • Average Annual Count : The count is 8.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -6.3
    Stillwater County6,10
    • Rate : The incidence rate is 165.1 with a 95% confidence interval from 120.3 to 223.1.
    • Average Annual Count : The count is 10.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 13.1
    Dawson County6,10
    • Rate : The incidence rate is 175.8 with a 95% confidence interval from 129.4 to 234.6.
    • Average Annual Count : The count is 10.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : -15.1
    Teton County6,10
    • Rate : The incidence rate is 186.4 with a 95% confidence interval from 132.6 to 257.9.
    • Average Annual Count : The count is 9.
    • Rate Period : The period for the rate is 2007-2011.
    • Recent Trend : stable stable trend
    • Recent AAPC : 16.2
    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 : *
    Fallon 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 : stable stable trend
    • Recent AAPC : 0
    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 : *
    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 : *
    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 10/21/2014 9:35 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.