State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Arizona by County

Breast (Late Stage^), 2018-2022

All Races (includes Hispanic), Female, 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.

Percent of Cases with Late Stage - This is the number of late stages cases compared to the number of cases for all stages.

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

Arizona²

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 37.9 with a 95% confidence interval from 37.0 to 38.7 and 1,630 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 42.4 with a 95% confidence interval from 42.3 to 42.5 and 83,714 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A

Apache County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 31.8 with a 95% confidence interval from 23.8 to 41.6 and 12 average annual cases over 2018-2022.
• CI*Rank ⋔ : 11 (3, 14)
• Percent of Cases with Late Stage :

Cochise County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 31.6 with a 95% confidence interval from 25.9 to 38.2 and 27 average annual cases over 2018-2022.
• CI*Rank ⋔ : 13 (4, 14)
• Percent of Cases with Late Stage :

Coconino County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 35.7 with a 95% confidence interval from 29.6 to 42.7 and 26 average annual cases over 2018-2022.
• CI*Rank ⋔ : 8 (2, 14)
• Percent of Cases with Late Stage :

Gila County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 35.7 with a 95% confidence interval from 25.8 to 48.0 and 13 average annual cases over 2018-2022.
• CI*Rank ⋔ : 9 (1, 14)
• Percent of Cases with Late Stage :

Graham County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 31.6 with a 95% confidence interval from 21.5 to 45.0 and 7 average annual cases over 2018-2022.
• CI*Rank ⋔ : 12 (2, 14)
• Percent of Cases with Late Stage :

La Paz County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 46.5 with a 95% confidence interval from 28.8 to 72.5 and 6 average annual cases over 2018-2022.
• CI*Rank ⋔ : 2 (1, 14)
• Percent of Cases with Late Stage :

Maricopa County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 38.9 with a 95% confidence interval from 37.8 to 40.0 and 987 average annual cases over 2018-2022.
• CI*Rank ⋔ : 4 (3, 8)
• Percent of Cases with Late Stage :

Mohave County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 36.5 with a 95% confidence interval from 31.6 to 41.9 and 59 average annual cases over 2018-2022.
• CI*Rank ⋔ : 5 (3, 13)
• Percent of Cases with Late Stage :

Navajo County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 36.3 with a 95% confidence interval from 29.6 to 44.1 and 24 average annual cases over 2018-2022.
• CI*Rank ⋔ : 6 (2, 14)
• Percent of Cases with Late Stage :

Pima County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 33.9 with a 95% confidence interval from 31.7 to 36.1 and 224 average annual cases over 2018-2022.
• CI*Rank ⋔ : 10 (6, 13)
• Percent of Cases with Late Stage :

Pinal County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 35.8 with a 95% confidence interval from 32.4 to 39.4 and 96 average annual cases over 2018-2022.
• CI*Rank ⋔ : 7 (4, 12)
• Percent of Cases with Late Stage :

Santa Cruz County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 26.8 with a 95% confidence interval from 18.7 to 37.3 and 8 average annual cases over 2018-2022.
• CI*Rank ⋔ : 14 (5, 14)
• Percent of Cases with Late Stage :

Yavapai County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 43.6 with a 95% confidence interval from 38.6 to 49.2 and 85 average annual cases over 2018-2022.
• CI*Rank ⋔ : 3 (1, 7)
• Percent of Cases with Late Stage :

Yuma County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 48.6 with a 95% confidence interval from 42.6 to 55.1 and 55 average annual cases over 2018-2022.
• CI*Rank ⋔ : 1 (1, 4)
• Percent of Cases with Late Stage :

Greenlee County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate :
• CI*Rank ⋔ : *
• Percent of Cases with Late Stage : *

Notes:
Created by statecancerprofiles.cancer.gov on 03/12/2026 5:13 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 are computed using cancers classified as malignant based on ICD-O-3. For more information see malignant.html.

^ Late Stage is defined as cases determined to be regional or distant. 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.