State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Maine by County

All Cancer Sites (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 476.9 with a 95% confidence interval from 472.4 to 481.5 and 9,536 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is stable because the trend is 0.1 with a 95% confidence interval from -0.3 to 0.8.

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 444.4 with a 95% confidence interval from 444.1 to 444.7 and 1,744,459 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is falling because the trend is -0.5 with a 95% confidence interval from -0.7 to -0.3.

Piscataquis County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 564.2 with a 95% confidence interval from 522.1 to 609.3 and 165 average annual cases over 2017-2021.
• CI*Rank ⋔ : 1 (1, 4)
• Recent Trend : The trend is stable because the trend is 2.0 with a 95% confidence interval from -3.6 to 7.6.

Washington County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 552.8 with a 95% confidence interval from 521.9 to 585.3 and 281 average annual cases over 2017-2021.
• CI*Rank ⋔ : 2 (1, 4)
• Recent Trend : The trend is stable because the trend is 5.8 with a 95% confidence interval from 0.0 to 10.0.

Penobscot County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 527.4 with a 95% confidence interval from 512.9 to 542.3 and 1,094 average annual cases over 2017-2021.
• CI*Rank ⋔ : 3 (1, 5)
• Recent Trend : The trend is stable because the trend is 0.6 with a 95% confidence interval from 0.0 to 1.5.

Hancock County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 520.9 with a 95% confidence interval from 498.1 to 544.6 and 468 average annual cases over 2017-2021.
• CI*Rank ⋔ : 4 (2, 6)
• Recent Trend : The trend is stable because the trend is 1.0 with a 95% confidence interval from -1.2 to 4.9.

Waldo County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 493.9 with a 95% confidence interval from 467.5 to 521.6 and 301 average annual cases over 2017-2021.
• CI*Rank ⋔ : 5 (3, 12)
• Recent Trend : The trend is stable because the trend is -0.6 with a 95% confidence interval from -1.2 to 0.1.

Somerset County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 490.4 with a 95% confidence interval from 467.3 to 514.6 and 378 average annual cases over 2017-2021.
• CI*Rank ⋔ : 6 (4, 12)
• Recent Trend : The trend is stable because the trend is 0.6 with a 95% confidence interval from -1.2 to 4.8.

York County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 482.9 with a 95% confidence interval from 471.4 to 494.5 and 1,496 average annual cases over 2017-2021.
• CI*Rank ⋔ : 7 (5, 11)
• Recent Trend : The trend is falling because the trend is -0.7 with a 95% confidence interval from -1.0 to -0.4.

Knox County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 482.7 with a 95% confidence interval from 457.5 to 509.0 and 327 average annual cases over 2017-2021.
• CI*Rank ⋔ : 8 (4, 14)
• Recent Trend : The trend is stable because the trend is -0.4 with a 95% confidence interval from -1.1 to 0.4.

Sagadahoc County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 471.7 with a 95% confidence interval from 445.4 to 499.3 and 272 average annual cases over 2017-2021.
• CI*Rank ⋔ : 9 (5, 16)
• Recent Trend : The trend is falling because the trend is -1.3 with a 95% confidence interval from -2.4 to -0.2.

Kennebec County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 470.5 with a 95% confidence interval from 455.7 to 485.7 and 841 average annual cases over 2017-2021.
• CI*Rank ⋔ : 10 (6, 14)
• Recent Trend : The trend is falling because the trend is -0.8 with a 95% confidence interval from -1.3 to -0.3.

Aroostook County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 466.1 with a 95% confidence interval from 446.8 to 486.1 and 513 average annual cases over 2017-2021.
• CI*Rank ⋔ : 11 (6, 15)
• Recent Trend : The trend is falling because the trend is -0.7 with a 95% confidence interval from -1.1 to -0.3.

Oxford County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 461.8 with a 95% confidence interval from 440.9 to 483.5 and 422 average annual cases over 2017-2021.
• CI*Rank ⋔ : 12 (6, 16)
• Recent Trend : The trend is stable because the trend is -0.4 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 452.6 with a 95% confidence interval from 436.8 to 468.9 and 663 average annual cases over 2017-2021.
• CI*Rank ⋔ : 13 (9, 16)
• Recent Trend : The trend is falling because the trend is -1.0 with a 95% confidence interval from -1.6 to -0.4.

Franklin County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 452.2 with a 95% confidence interval from 423.2 to 482.8 and 208 average annual cases over 2017-2021.
• CI*Rank ⋔ : 14 (6, 16)
• Recent Trend : The trend is stable because the trend is -0.9 with a 95% confidence interval from -3.5 to 0.3.

Cumberland County⁶

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 444.5 with a 95% confidence interval from 435.1 to 454.1 and 1,830 average annual cases over 2017-2021.
• CI*Rank ⋔ : 15 (12, 16)
• Recent Trend : The trend is falling because the trend is -1.1 with a 95% confidence interval from -1.5 to -0.7.

Lincoln County⁶

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 434.5 with a 95% confidence interval from 409.6 to 460.7 and 277 average annual cases over 2017-2021.
• CI*Rank ⋔ : 16 (10, 16)
• Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.0 to 0.4.

Notes:
Created by statecancerprofiles.cancer.gov on 07/03/2025 1:56 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 (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.