State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Maine by County

Lung & Bronchus (All Stages^), 2017-2021

All Races (includes Hispanic), Both Sexes, All Ages

Sorted by Rate

Explanation of Column Headers

Objective - The objective of *** is from the Healthy People 2020 project done by the Centers for Disease Control and Prevention.

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:

• 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

Maine⁶

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 67.3 with a 95% confidence interval from 65.7 to 68.9 and 1,441 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is falling because the trend is -3.0 with a 95% confidence interval from -5.4 to -0.8.

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 53.1 with a 95% confidence interval from 53.0 to 53.2 and 216,523 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is falling because the trend is -3.5 with a 95% confidence interval from -4.2 to -2.9.

Piscataquis County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 91.4 with a 95% confidence interval from 76.6 to 109.2 and 30 average annual cases over 2017-2021.
• CI*Rank ⋔ : 1 (1, 7)
• Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -1.5 to 2.1.

Somerset County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 87.5 with a 95% confidence interval from 78.4 to 97.5 and 72 average annual cases over 2017-2021.
• CI*Rank ⋔ : 2 (1, 5)
• Recent Trend : The trend is stable because the trend is 0.1 with a 95% confidence interval from -1.2 to 1.5.

Penobscot County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 84.3 with a 95% confidence interval from 78.8 to 90.2 and 185 average annual cases over 2017-2021.
• CI*Rank ⋔ : 3 (1, 5)
• Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.3 to 0.4.

Washington County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 82.2 with a 95% confidence interval from 71.4 to 94.6 and 45 average annual cases over 2017-2021.
• CI*Rank ⋔ : 4 (1, 9)
• Recent Trend : The trend is falling because the trend is -1.6 with a 95% confidence interval from -3.0 to -0.1.

Oxford County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 75.8 with a 95% confidence interval from 68.1 to 84.4 and 75 average annual cases over 2017-2021.
• CI*Rank ⋔ : 5 (2, 10)
• Recent Trend : The trend is stable because the trend is -0.3 with a 95% confidence interval from -1.5 to 0.9.

Kennebec County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 73.2 with a 95% confidence interval from 67.7 to 79.1 and 140 average annual cases over 2017-2021.
• CI*Rank ⋔ : 6 (3, 10)
• Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.3 to 0.4.

Androscoggin County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 71.6 with a 95% confidence interval from 65.6 to 78.0 and 111 average annual cases over 2017-2021.
• CI*Rank ⋔ : 7 (4, 11)
• Recent Trend : The trend is falling because the trend is -1.0 with a 95% confidence interval from -1.7 to -0.3.

Aroostook County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 69.8 with a 95% confidence interval from 63.0 to 77.2 and 84 average annual cases over 2017-2021.
• CI*Rank ⋔ : 8 (4, 12)
• Recent Trend : The trend is falling because the trend is -1.4 with a 95% confidence interval from -2.6 to -0.1.

York County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 66.4 with a 95% confidence interval from 62.4 to 70.6 and 219 average annual cases over 2017-2021.
• CI*Rank ⋔ : 9 (6, 12)
• Recent Trend : The trend is falling because the trend is -5.4 with a 95% confidence interval from -10.4 to -0.2.

Waldo County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 65.9 with a 95% confidence interval from 57.3 to 75.7 and 45 average annual cases over 2017-2021.
• CI*Rank ⋔ : 10 (5, 14)
• Recent Trend : The trend is stable because the trend is -1.2 with a 95% confidence interval from -2.7 to 0.4.

Franklin County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 65.7 with a 95% confidence interval from 55.6 to 77.5 and 32 average annual cases over 2017-2021.
• CI*Rank ⋔ : 11 (4, 15)
• Recent Trend : The trend is stable because the trend is 0.3 with a 95% confidence interval from -1.9 to 2.7.

Hancock County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 60.7 with a 95% confidence interval from 53.9 to 68.4 and 61 average annual cases over 2017-2021.
• CI*Rank ⋔ : 12 (8, 15)
• Recent Trend : The trend is falling because the trend is -2.4 with a 95% confidence interval from -4.0 to -0.8.

Sagadahoc County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 57.5 with a 95% confidence interval from 49.1 to 67.3 and 35 average annual cases over 2017-2021.
• CI*Rank ⋔ : 13 (8, 16)
• Recent Trend : The trend is stable because the trend is -1.8 with a 95% confidence interval from -3.5 to 0.1.

Cumberland County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 54.0 with a 95% confidence interval from 50.9 to 57.3 and 232 average annual cases over 2017-2021.
• CI*Rank ⋔ : 14 (12, 16)
• Recent Trend : The trend is falling because the trend is -2.0 with a 95% confidence interval from -2.6 to -1.4.

Lincoln County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 52.1 with a 95% confidence interval from 44.3 to 61.2 and 36 average annual cases over 2017-2021.
• CI*Rank ⋔ : 15 (11, 16)
• Recent Trend : The trend is stable because the trend is -1.8 with a 95% confidence interval from -4.1 to 0.5.

Knox County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 48.7 with a 95% confidence interval from 41.8 to 56.7 and 38 average annual cases over 2017-2021.
• CI*Rank ⋔ : 16 (13, 16)
• Recent Trend : The trend is falling because the trend is -7.3 with a 95% confidence interval from -19.2 to -3.2.

Notes:
Created by statecancerprofiles.cancer.gov on 07/06/2025 8:57 pm.

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 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 in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: SEER and NPCR data. For more specific information please see the table.

Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.