State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Maine by County

Lung & Bronchus (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

Maine²

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 39.8 with a 95% confidence interval from 38.1 to 41.5 and 458 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 30.0 with a 95% confidence interval from 29.9 to 30.1 and 68,578 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A

Androscoggin County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 43.8 with a 95% confidence interval from 37.6 to 50.9 and 37 average annual cases over 2018-2022.
• CI*Rank ⋔ : 7 (2, 12)
• Percent of Cases with Late Stage :

Aroostook County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 34.9 with a 95% confidence interval from 28.6 to 42.6 and 22 average annual cases over 2018-2022.
• CI*Rank ⋔ : 11 (6, 16)
• Percent of Cases with Late Stage :

Cumberland County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 30.9 with a 95% confidence interval from 27.7 to 34.3 and 74 average annual cases over 2018-2022.
• CI*Rank ⋔ : 16 (11, 16)
• Percent of Cases with Late Stage :

Franklin County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 32.5 with a 95% confidence interval from 23.5 to 44.9 and 9 average annual cases over 2018-2022.
• CI*Rank ⋔ : 14 (5, 16)
• Percent of Cases with Late Stage :

Hancock County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 32.7 with a 95% confidence interval from 26.0 to 41.1 and 18 average annual cases over 2018-2022.
• CI*Rank ⋔ : 13 (7, 16)
• Percent of Cases with Late Stage :

Kennebec County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 44.4 with a 95% confidence interval from 38.6 to 51.0 and 45 average annual cases over 2018-2022.
• CI*Rank ⋔ : 6 (2, 11)
• Percent of Cases with Late Stage :

Knox County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 38.1 with a 95% confidence interval from 29.9 to 48.8 and 16 average annual cases over 2018-2022.
• CI*Rank ⋔ : 9 (3, 16)
• Percent of Cases with Late Stage :

Lincoln County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 31.5 with a 95% confidence interval from 23.4 to 42.5 and 12 average annual cases over 2018-2022.
• CI*Rank ⋔ : 15 (6, 16)
• Percent of Cases with Late Stage :

Oxford County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 47.2 with a 95% confidence interval from 38.5 to 57.6 and 23 average annual cases over 2018-2022.
• CI*Rank ⋔ : 5 (1, 11)
• Percent of Cases with Late Stage :

Penobscot County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 49.0 with a 95% confidence interval from 43.3 to 55.3 and 57 average annual cases over 2018-2022.
• CI*Rank ⋔ : 4 (1, 8)
• Percent of Cases with Late Stage :

Piscataquis County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 52.8 with a 95% confidence interval from 36.8 to 75.3 and 8 average annual cases over 2018-2022.
• CI*Rank ⋔ : 2 (1, 14)
• Percent of Cases with Late Stage :

Sagadahoc County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 36.8 with a 95% confidence interval from 28.2 to 48.0 and 13 average annual cases over 2018-2022.
• CI*Rank ⋔ : 10 (3, 16)
• Percent of Cases with Late Stage :

Somerset County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 55.8 with a 95% confidence interval from 45.8 to 67.8 and 23 average annual cases over 2018-2022.
• CI*Rank ⋔ : 1 (1, 7)
• Percent of Cases with Late Stage :

Waldo County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 34.1 with a 95% confidence interval from 26.3 to 44.3 and 14 average annual cases over 2018-2022.
• CI*Rank ⋔ : 12 (5, 16)
• Percent of Cases with Late Stage :

Washington County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 49.6 with a 95% confidence interval from 38.5 to 63.9 and 14 average annual cases over 2018-2022.
• CI*Rank ⋔ : 3 (1, 12)
• Percent of Cases with Late Stage :

York County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 40.3 with a 95% confidence interval from 36.1 to 45.0 and 73 average annual cases over 2018-2022.
• CI*Rank ⋔ : 8 (4, 12)
• Percent of Cases with Late Stage :

Notes:
Created by statecancerprofiles.cancer.gov on 03/25/2026 8:24 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.

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 for United States does not include Puerto Rico.