Interpretation of Incidence Rates Data
Incidence Rate Report for North Dakota by County
Breast (All Stages^), 2018-2022
All Races (includes Hispanic), Female, All Ages
Sorted by Name
Explanation of Column HeadersIncidence 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:
- Rising when 95% confidence interval of AAPC/APC is above 0.
- Stable when 95% confidence interval of AAPC/APC includes 0.
- Falling when 95% confidence interval of AAPC/APC is below 0.
AAPC/APC (95% Confidence Interval) - the change in rate over time
- Average Annual Percent Change - AAPCs are based upon APCs that were calculated by Joinpoint Regression Program
- Annual Percent Change - APCs calculated in SEER*Stat.
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
North Dakota2
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 130.3 with a 95% confidence interval from 125.3 to 135.4 and 561 average annual cases over 2018-2022.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is because the trend is 0.5 with a 95% confidence interval from 0.1 to 0.9.
US (SEER+NPCR)1
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 131.3 with a 95% confidence interval from 131.1 to 131.6 and 270,245 average annual cases over 2018-2022.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is because the trend is 0.6 with a 95% confidence interval from 0.5 to 0.8.
Barnes County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 137.0 with a 95% confidence interval from 99.4 to 185.2 and 11 average annual cases over 2018-2022.
- CI*Rank ⋔ : 17 (1, 30)
- Recent Trend : The trend is because the trend is -1.4 with a 95% confidence interval from -4.3 to 1.2.
Benson County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 185.4 with a 95% confidence interval from 119.1 to 274.8 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 1 (1, 29)
- Recent Trend : The trend is because the trend is 13.2 with a 95% confidence interval from 0.1 to 53.2.
Bottineau County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 138.1 with a 95% confidence interval from 87.1 to 209.2 and 6 average annual cases over 2018-2022.
- CI*Rank ⋔ : 15 (1, 31)
- Recent Trend : The trend is because the trend is 0.8 with a 95% confidence interval from -2.6 to 4.2.
Burleigh County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 140.1 with a 95% confidence interval from 126.3 to 155.0 and 84 average annual cases over 2018-2022.
- CI*Rank ⋔ : 13 (4, 23)
- Recent Trend : The trend is because the trend is 0.8 with a 95% confidence interval from -0.5 to 2.2.
Cass County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 139.0 with a 95% confidence interval from 128.1 to 150.7 and 125 average annual cases over 2018-2022.
- CI*Rank ⋔ : 14 (5, 22)
- Recent Trend : The trend is because the trend is 0.4 with a 95% confidence interval from -0.5 to 1.5.
Cavalier County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 144.8 with a 95% confidence interval from 73.4 to 256.0 and 3 average annual cases over 2018-2022.
- CI*Rank ⋔ : 9 (1, 31)
- Recent Trend : The trend is because the trend is 0.1 with a 95% confidence interval from -4.6 to 3.7.
Emmons County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 154.7 with a 95% confidence interval from 93.4 to 252.3 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 4 (1, 31)
- Recent Trend :
Foster County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 153.1 with a 95% confidence interval from 87.5 to 253.7 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 6 (1, 31)
- Recent Trend : The trend is because the trend is 5.0 with a 95% confidence interval from -2.4 to 14.7.
Grand Forks County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 132.4 with a 95% confidence interval from 115.1 to 151.5 and 47 average annual cases over 2018-2022.
- CI*Rank ⋔ : 18 (5, 26)
- Recent Trend : The trend is because the trend is -0.4 with a 95% confidence interval from -2.1 to 1.3.
LaMoure County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 124.5 with a 95% confidence interval from 67.4 to 213.9 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 24 (1, 31)
- Recent Trend : The trend is because the trend is 0.7 with a 95% confidence interval from -4.1 to 5.2.
McHenry County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 126.0 with a 95% confidence interval from 75.8 to 199.6 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 23 (1, 31)
- Recent Trend : The trend is because the trend is -0.7 with a 95% confidence interval from -5.9 to 4.6.
McKenzie County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 104.9 with a 95% confidence interval from 68.6 to 152.7 and 6 average annual cases over 2018-2022.
- CI*Rank ⋔ : 29 (5, 31)
- Recent Trend : The trend is because the trend is -0.6 with a 95% confidence interval from -4.7 to 4.3.
McLean County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 146.2 with a 95% confidence interval from 102.7 to 202.7 and 9 average annual cases over 2018-2022.
- CI*Rank ⋔ : 8 (1, 30)
- Recent Trend : The trend is because the trend is 1.0 with a 95% confidence interval from -3.3 to 5.5.
Mercer County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 153.8 with a 95% confidence interval from 103.3 to 220.3 and 7 average annual cases over 2018-2022.
- CI*Rank ⋔ : 5 (1, 30)
- Recent Trend :
Morton County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 127.5 with a 95% confidence interval from 105.3 to 153.0 and 26 average annual cases over 2018-2022.
- CI*Rank ⋔ : 21 (5, 29)
- Recent Trend : The trend is because the trend is 1.1 with a 95% confidence interval from -1.6 to 4.2.
Mountrail County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 159.4 with a 95% confidence interval from 110.1 to 222.9 and 7 average annual cases over 2018-2022.
- CI*Rank ⋔ : 2 (1, 30)
- Recent Trend : The trend is because the trend is 2.4 with a 95% confidence interval from -1.4 to 7.1.
Nelson County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 158.7 with a 95% confidence interval from 90.1 to 269.3 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 3 (1, 31)
- Recent Trend : The trend is because the trend is 3.7 with a 95% confidence interval from -0.6 to 8.9.
Pembina County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 143.6 with a 95% confidence interval from 94.2 to 211.7 and 6 average annual cases over 2018-2022.
- CI*Rank ⋔ : 10 (1, 31)
- Recent Trend : The trend is because the trend is 3.8 with a 95% confidence interval from -0.2 to 8.3.
Pierce County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 141.9 with a 95% confidence interval from 80.7 to 234.4 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 12 (1, 31)
- Recent Trend :
Ramsey County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 128.5 with a 95% confidence interval from 91.1 to 176.5 and 9 average annual cases over 2018-2022.
- CI*Rank ⋔ : 19 (2, 31)
- Recent Trend : The trend is because the trend is 0.3 with a 95% confidence interval from -2.6 to 3.2.
Ransom County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 91.1 with a 95% confidence interval from 52.2 to 151.3 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 31 (6, 31)
- Recent Trend : The trend is because the trend is -1.9 with a 95% confidence interval from -5.7 to 1.7.
Richland County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 128.1 with a 95% confidence interval from 97.1 to 166.3 and 13 average annual cases over 2018-2022.
- CI*Rank ⋔ : 20 (3, 30)
- Recent Trend : The trend is because the trend is 1.3 with a 95% confidence interval from -2.4 to 5.3.
Rolette County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 124.2 with a 95% confidence interval from 87.8 to 170.7 and 8 average annual cases over 2018-2022.
- CI*Rank ⋔ : 25 (2, 31)
- Recent Trend : The trend is because the trend is -23.9 with a 95% confidence interval from -43.1 to -1.3.
Sargent County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 152.3 with a 95% confidence interval from 89.5 to 247.4 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 7 (1, 31)
- Recent Trend :
Stark County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 137.4 with a 95% confidence interval from 111.9 to 166.8 and 22 average annual cases over 2018-2022.
- CI*Rank ⋔ : 16 (3, 28)
- Recent Trend : The trend is because the trend is 3.7 with a 95% confidence interval from -5.4 to 17.8.
Stutsman County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 107.0 with a 95% confidence interval from 83.5 to 135.6 and 16 average annual cases over 2018-2022.
- CI*Rank ⋔ : 28 (10, 31)
- Recent Trend : The trend is because the trend is -1.3 with a 95% confidence interval from -4.2 to 1.3.
Traill County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 142.7 with a 95% confidence interval from 98.1 to 202.0 and 8 average annual cases over 2018-2022.
- CI*Rank ⋔ : 11 (1, 31)
- Recent Trend : The trend is because the trend is 1.6 with a 95% confidence interval from -2.8 to 6.5.
Walsh County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 110.4 with a 95% confidence interval from 77.4 to 154.0 and 8 average annual cases over 2018-2022.
- CI*Rank ⋔ : 27 (4, 31)
- Recent Trend : The trend is because the trend is -0.1 with a 95% confidence interval from -7.4 to 2.3.
Ward County2
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 127.4 with a 95% confidence interval from 110.6 to 146.0 and 44 average annual cases over 2018-2022.
- CI*Rank ⋔ : 22 (7, 28)
- Recent Trend : The trend is because the trend is 0.3 with a 95% confidence interval from -2.1 to 2.7.
Wells County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 119.7 with a 95% confidence interval from 69.9 to 199.8 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 26 (1, 31)
- Recent Trend : The trend is because the trend is 3.7 with a 95% confidence interval from -1.0 to 9.2.
Williams County2
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 97.3 with a 95% confidence interval from 76.8 to 121.4 and 16 average annual cases over 2018-2022.
- CI*Rank ⋔ : 30 (17, 31)
- Recent Trend : The trend is because the trend is -0.7 with a 95% confidence interval from -2.7 to 1.5.
Notes:
Created by statecancerprofiles.cancer.gov on 03/15/2026 12:23 am.
State Cancer Registries may provide more current or more local data.
Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
† 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.
‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.
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.
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.
1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2024 submission.
2 Source: National Program of Cancer Registries SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention (based on the 2024 submission).
* 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.


