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Interpretation of Incidence Rates Data

Incidence Rate Report for Montana by County

Childhood (Ages <15, All Sites) (All Stages^), 2018-2022

All Races (includes Hispanic), Both Sexes

Sorted by Recentaapc

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.

Recent Trends - This is an interpretation of the AAPC/APC:

AAPC/APC (95% Confidence Interval) - the change in rate over time


Other Notes


Line by Line Interpretation of the Report


Missoula County2


Yellowstone County2


Flathead County2


Beaverhead County2 Big Horn County2 Blaine County2 Broadwater County2 Carbon County2 Carter County2 Cascade County2 Chouteau County2 Custer County2 Daniels County2 Dawson County2 Deer Lodge County2 Fallon County2 Fergus County2 Gallatin County2 Garfield County2 Glacier County2 Golden Valley County2 Granite County2 Hill County2 Jefferson County2 Judith Basin County2 Lake County2 Lewis and Clark County2 Liberty County2 Lincoln County2 Madison County2 McCone County2 Meagher County2 Mineral County2 Musselshell County2 Park County2 Petroleum County2 Phillips County2 Pondera County2 Powder River County2 Powell County2 Prairie County2 Ravalli County2 Richland County2 Roosevelt County2 Rosebud County2 Sanders County2 Sheridan County2 Silver Bow County2 Stillwater County2 Sweet Grass County2 Teton County2 Toole County2 Treasure County2 Valley County2 Wheatland County2 Wibaux County2


Notes:
Created by statecancerprofiles.cancer.gov on 03/19/2026 3:30 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 (SEER areas use 20 age groups and NPCR areas use 19 age groups). 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 US Population Data File is used for SEER and NPCR incidence rates.

Rates and trends are computed using different standards for malignancy. For more information see malignant.html.

^ All Stages refers to any stage. Due to changes in stage coding, Combined Summary Stage with Expanded Regional Codes (2004+) is used for data from Surveillance, Epidemiology, and End Results (SEER) databases and Merged Summary Stage is used for data from National Program of Cancer Registries databases. Due to the increased complexity with staging, other staging variables maybe used if necessary.

⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. The rates used in CI*Rank are all age-adjusted to the 2000 US standard population using 19 age groups for SEER and NPCR areas. More information about methodology can be found on the CI*Rank website.

When displaying county information, the CI*Rank for the state is not shown because it's not comparable. To see the state CI*Rank please view the statistics at the US By State level.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

Source: SEER and NPCR data. For more specific information please see the table.

* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 records were reported in a specific area-sex-race category.

Data for United States does not include Puerto Rico.