State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Maine by County

Colon & Rectum (All Stages^), 2018-2022

All Races (includes Hispanic), Both Sexes, Ages 65+

Sorted by Recentaapc

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.

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

Maine²

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 147.2 with a 95% confidence interval from 140.8 to 153.8 and 407 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is because the trend is -2.8 with a 95% confidence interval from -4.5 to 1.5.

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 155.0 with a 95% confidence interval from 154.5 to 155.5 and 81,215 average annual cases over 2018-2022.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is because the trend is -2.6 with a 95% confidence interval from -2.8 to -2.3.

Lincoln County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 129.8 with a 95% confidence interval from 99.1 to 166.9 and 12 average annual cases over 2018-2022.
• CI*Rank ⋔ : 15 (3, 16)
• Recent Trend : The trend is because the trend is -5.4 with a 95% confidence interval from -7.7 to -3.4.

Somerset County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 130.0 with a 95% confidence interval from 100.1 to 166.0 and 13 average annual cases over 2018-2022.
• CI*Rank ⋔ : 14 (4, 16)
• Recent Trend : The trend is because the trend is -5.2 with a 95% confidence interval from -7.2 to -3.4.

Washington County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 139.1 with a 95% confidence interval from 104.0 to 182.5 and 11 average annual cases over 2018-2022.
• CI*Rank ⋔ : 12 (2, 16)
• Recent Trend : The trend is because the trend is -5.2 with a 95% confidence interval from -7.9 to -3.2.

Androscoggin County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 142.5 with a 95% confidence interval from 119.7 to 168.3 and 28 average annual cases over 2018-2022.
• CI*Rank ⋔ : 10 (3, 16)
• Recent Trend : The trend is because the trend is -5.1 with a 95% confidence interval from -6.9 to -3.6.

Cumberland County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 130.4 with a 95% confidence interval from 117.2 to 144.7 and 73 average annual cases over 2018-2022.
• CI*Rank ⋔ : 13 (8, 16)
• Recent Trend : The trend is because the trend is -5.1 with a 95% confidence interval from -6.1 to -4.2.

Penobscot County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 150.3 with a 95% confidence interval from 130.4 to 172.4 and 42 average annual cases over 2018-2022.
• CI*Rank ⋔ : 8 (2, 15)
• Recent Trend : The trend is because the trend is -4.9 with a 95% confidence interval from -6.7 to -3.5.

Hancock County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 147.3 with a 95% confidence interval from 119.2 to 180.2 and 20 average annual cases over 2018-2022.
• CI*Rank ⋔ : 9 (2, 16)
• Recent Trend : The trend is because the trend is -4.6 with a 95% confidence interval from -6.0 to -3.4.

Sagadahoc County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 157.0 with a 95% confidence interval from 120.6 to 200.8 and 13 average annual cases over 2018-2022.
• CI*Rank ⋔ : 7 (1, 16)
• Recent Trend : The trend is because the trend is -4.5 with a 95% confidence interval from -7.2 to -2.0.

Franklin County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 121.0 with a 95% confidence interval from 84.5 to 167.8 and 7 average annual cases over 2018-2022.
• CI*Rank ⋔ : 16 (3, 16)
• Recent Trend : The trend is because the trend is -4.1 with a 95% confidence interval from -7.3 to -1.3.

Kennebec County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 157.4 with a 95% confidence interval from 135.5 to 181.8 and 38 average annual cases over 2018-2022.
• CI*Rank ⋔ : 6 (2, 14)
• Recent Trend : The trend is because the trend is -4.1 with a 95% confidence interval from -5.5 to -2.8.

Aroostook County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 171.5 with a 95% confidence interval from 143.7 to 203.1 and 27 average annual cases over 2018-2022.
• CI*Rank ⋔ : 5 (1, 13)
• Recent Trend : The trend is because the trend is -3.9 with a 95% confidence interval from -5.6 to -2.5.

Knox County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 176.3 with a 95% confidence interval from 141.3 to 217.3 and 18 average annual cases over 2018-2022.
• CI*Rank ⋔ : 3 (1, 13)
• Recent Trend : The trend is because the trend is -3.7 with a 95% confidence interval from -5.9 to -1.7.

Piscataquis County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 187.0 with a 95% confidence interval from 132.4 to 256.7 and 8 average annual cases over 2018-2022.
• CI*Rank ⋔ : 1 (1, 15)
• Recent Trend : The trend is because the trend is -3.5 with a 95% confidence interval from -6.7 to -0.5.

Waldo County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 182.7 with a 95% confidence interval from 143.0 to 229.8 and 16 average annual cases over 2018-2022.
• CI*Rank ⋔ : 2 (1, 13)
• Recent Trend : The trend is because the trend is -3.3 with a 95% confidence interval from -6.8 to 0.0.

Oxford County²

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 173.6 with a 95% confidence interval from 141.9 to 210.3 and 22 average annual cases over 2018-2022.
• CI*Rank ⋔ : 4 (1, 13)
• Recent Trend : The trend is because the trend is -3.0 with a 95% confidence interval from -4.9 to -1.2.

York County²

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 140.7 with a 95% confidence interval from 124.8 to 158.0 and 59 average annual cases over 2018-2022.
• CI*Rank ⋔ : 11 (5, 16)
• Recent Trend : The trend is because the trend is -1.3 with a 95% confidence interval from -6.4 to 7.6.

Notes:
Created by statecancerprofiles.cancer.gov on 03/25/2026 5:00 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 (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 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.

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.