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 Incidence Rates Report
National Cancer Institute State Cancer Profiles Centers for Disease Control and Prevention
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Incidence Rate Report for Montana by County

All Races (includes Hispanic), Female, Breast, All Ages
Sorted by Name
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
  • Rate - The incidence rate is 124.1 with a 95% confidence interval from 120.1 to 128.3.
  • Average Annual Count - The count is 732.
  • Rate Period - The period for the rate is 2006-2010.
  • US (SEER+NPCR)1
  • Rate - The incidence rate is 119.8 with a 95% confidence interval from 119.6 to 120.0.
  • Average Annual Count - The count is 207,460 .
  • Rate Period - The period for the rate is 2006-2010.
  • Beaverhead County6
  • Rate - The incidence rate is 122.6 with a 95% confidence interval from 83.0 to 175.5.
  • Average Annual Count - The count is 7.
  • Rate Period - The period for the rate is 2006-2010.
  • Big Horn County6
  • Rate - The incidence rate is 97.7 with a 95% confidence interval from 65.9 to 139.6.
  • Average Annual Count - The count is 6.
  • Rate Period - The period for the rate is 2006-2010.
  • Blaine County6
  • Rate - The incidence rate is 139.3 with a 95% confidence interval from 89.1 to 207.9.
  • Average Annual Count - The count is 5.
  • Rate Period - The period for the rate is 2006-2010.
  • Broadwater County6
  • Rate - The incidence rate is 110.9 with a 95% confidence interval from 66.9 to 176.8.
  • Average Annual Count - The count is 4.
  • Rate Period - The period for the rate is 2006-2010.
  • Carbon County6
  • Rate - The incidence rate is 107.5 with a 95% confidence interval from 75.0 to 151.4.
  • Average Annual Count - The count is 8.
  • Rate Period - The period for the rate is 2006-2010.
  • Carter County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Cascade County6
  • Rate - The incidence rate is 134.1 with a 95% confidence interval from 120.0 to 149.5.
  • Average Annual Count - The count is 68.
  • Rate Period - The period for the rate is 2006-2010.
  • Chouteau County6
  • Rate - The incidence rate is 145.9 with a 95% confidence interval from 96.5 to 214.4.
  • Average Annual Count - The count is 6.
  • Rate Period - The period for the rate is 2006-2010.
  • Custer County6
  • Rate - The incidence rate is 93.4 with a 95% confidence interval from 65.4 to 130.6.
  • Average Annual Count - The count is 8.
  • Rate Period - The period for the rate is 2006-2010.
  • Daniels County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Dawson County6
  • Rate - The incidence rate is 171.8 with a 95% confidence interval from 125.8 to 230.3.
  • Average Annual Count - The count is 10.
  • Rate Period - The period for the rate is 2006-2010.
  • Deer Lodge County6
  • Rate - The incidence rate is 82.0 with a 95% confidence interval from 52.4 to 124.7.
  • Average Annual Count - The count is 5.
  • Rate Period - The period for the rate is 2006-2010.
  • Fallon County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Fergus County6
  • Rate - The incidence rate is 95.8 with a 95% confidence interval from 68.4 to 132.4.
  • Average Annual Count - The count is 9.
  • Rate Period - The period for the rate is 2006-2010.
  • Flathead County6
  • Rate - The incidence rate is 125.3 with a 95% confidence interval from 112.0 to 139.9.
  • Average Annual Count - The count is 68.
  • Rate Period - The period for the rate is 2006-2010.
  • Gallatin County6
  • Rate - The incidence rate is 141.9 with a 95% confidence interval from 125.2 to 160.1.
  • Average Annual Count - The count is 55.
  • Rate Period - The period for the rate is 2006-2010.
  • Garfield County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Glacier County6
  • Rate - The incidence rate is 130.9 with a 95% confidence interval from 94.7 to 176.4.
  • Average Annual Count - The count is 9.
  • Rate Period - The period for the rate is 2006-2010.
  • Golden Valley County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Granite County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Hill County6
  • Rate - The incidence rate is 105.3 with a 95% confidence interval from 75.5 to 142.8.
  • Average Annual Count - The count is 9.
  • Rate Period - The period for the rate is 2006-2010.
  • Jefferson County6
  • Rate - The incidence rate is 107.4 with a 95% confidence interval from 74.5 to 151.4.
  • Average Annual Count - The count is 8.
  • Rate Period - The period for the rate is 2006-2010.
  • Judith Basin County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Lake County6
  • Rate - The incidence rate is 136.4 with a 95% confidence interval from 112.3 to 164.3.
  • Average Annual Count - The count is 24.
  • Rate Period - The period for the rate is 2006-2010.
  • Lewis and Clark County6
  • Rate - The incidence rate is 126.1 with a 95% confidence interval from 110.1 to 143.9.
  • Average Annual Count - The count is 47.
  • Rate Period - The period for the rate is 2006-2010.
  • Liberty County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Lincoln County6
  • Rate - The incidence rate is 106.4 with a 95% confidence interval from 83.3 to 135.1.
  • Average Annual Count - The count is 16.
  • Rate Period - The period for the rate is 2006-2010.
  • Madison County6
  • Rate - The incidence rate is 95.7 with a 95% confidence interval from 61.6 to 145.5.
  • Average Annual Count - The count is 5.
  • Rate Period - The period for the rate is 2006-2010.
  • McCone County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Meagher County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Mineral County6
  • Rate - The incidence rate is 121.5 with a 95% confidence interval from 68.4 to 205.0.
  • Average Annual Count - The count is 4.
  • Rate Period - The period for the rate is 2006-2010.
  • Missoula County6
  • Rate - The incidence rate is 124.0 with a 95% confidence interval from 110.8 to 138.3.
  • Average Annual Count - The count is 68.
  • Rate Period - The period for the rate is 2006-2010.
  • Musselshell County6
  • Rate - The incidence rate is 115.9 with a 95% confidence interval from 67.5 to 191.5.
  • Average Annual Count - The count is 4.
  • Rate Period - The period for the rate is 2006-2010.
  • Park County6
  • Rate - The incidence rate is 132.2 with a 95% confidence interval from 102.6 to 168.5.
  • Average Annual Count - The count is 14.
  • Rate Period - The period for the rate is 2006-2010.
  • Petroleum County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Phillips County6
  • Rate - The incidence rate is 109.9 with a 95% confidence interval from 62.3 to 185.9.
  • Average Annual Count - The count is 3.
  • Rate Period - The period for the rate is 2006-2010.
  • Pondera County6
  • Rate - The incidence rate is 143.8 with a 95% confidence interval from 94.3 to 211.4.
  • Average Annual Count - The count is 6.
  • Rate Period - The period for the rate is 2006-2010.
  • Powder River County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Powell County6
  • Rate - The incidence rate is 105.0 with a 95% confidence interval from 64.8 to 165.6.
  • Average Annual Count - The count is 4.
  • Rate Period - The period for the rate is 2006-2010.
  • Prairie County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Ravalli County6
  • Rate - The incidence rate is 115.6 with a 95% confidence interval from 98.1 to 135.6.
  • Average Annual Count - The count is 33.
  • Rate Period - The period for the rate is 2006-2010.
  • Richland County6
  • Rate - The incidence rate is 139.8 with a 95% confidence interval from 97.6 to 194.6.
  • Average Annual Count - The count is 8.
  • Rate Period - The period for the rate is 2006-2010.
  • Roosevelt County6
  • Rate - The incidence rate is 129.1 with a 95% confidence interval from 89.2 to 180.9.
  • Average Annual Count - The count is 7.
  • Rate Period - The period for the rate is 2006-2010.
  • Rosebud County6
  • Rate - The incidence rate is 155.7 with a 95% confidence interval from 108.4 to 216.8.
  • Average Annual Count - The count is 7.
  • Rate Period - The period for the rate is 2006-2010.
  • Sanders County6
  • Rate - The incidence rate is 120.8 with a 95% confidence interval from 87.7 to 164.1.
  • Average Annual Count - The count is 10.
  • Rate Period - The period for the rate is 2006-2010.
  • Sheridan County6
  • Rate - The incidence rate is 103.5 with a 95% confidence interval from 59.4 to 181.9.
  • Average Annual Count - The count is 3.
  • Rate Period - The period for the rate is 2006-2010.
  • Silver Bow County6
  • Rate - The incidence rate is 117.5 with a 95% confidence interval from 98.1 to 139.9.
  • Average Annual Count - The count is 27.
  • Rate Period - The period for the rate is 2006-2010.
  • Stillwater County6
  • Rate - The incidence rate is 163.8 with a 95% confidence interval from 119.0 to 221.6.
  • Average Annual Count - The count is 10.
  • Rate Period - The period for the rate is 2006-2010.
  • Sweet Grass County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Teton County6
  • Rate - The incidence rate is 155.6 with a 95% confidence interval from 107.1 to 221.8.
  • Average Annual Count - The count is 7.
  • Rate Period - The period for the rate is 2006-2010.
  • Toole County6
  • Rate - The incidence rate is 137.8 with a 95% confidence interval from 81.2 to 220.6.
  • Average Annual Count - The count is 4.
  • Rate Period - The period for the rate is 2006-2010.
  • Treasure County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Valley County6
  • Rate - The incidence rate is 119.4 with a 95% confidence interval from 78.6 to 175.9.
  • Average Annual Count - The count is 6.
  • Rate Period - The period for the rate is 2006-2010.
  • Wheatland County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Wibaux County6
  • Rate - *
  • Average Annual Count - *
  • Rate Period - *
  • Yellowstone County6
  • Rate - The incidence rate is 121.8 with a 95% confidence interval from 111.5 to 132.9.
  • Average Annual Count - The count is 106.
  • Rate Period - The period for the rate is 2006-2010.


  • Notes:
    Created by statecancerprofiles.cancer.gov on 04/24/2014 4:25 am.
    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 1969-2011 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 2012 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 2013 data submission and SEER November 2012 submission.
    6 Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission. State rates include rates from metropolitan areas funded by SEER.

    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.