State Cancer Profiles

Interpretation of Incidence Rates Data

Incidence Rate Report for Connecticut by County

Prostate (All Stages^), 2017-2021

All Races (includes Hispanic), Male, 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

Connecticut⁷

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 130.0 with a 95% confidence interval from 127.9 to 132.1 and 3,066 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is rising because the trend is 5.4 with a 95% confidence interval from 3.8 to 7.2.

US (SEER+NPCR)¹

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Rate : The incidence rate is 113.2 with a 95% confidence interval from 113.0 to 113.4 and 224,883 average annual cases over 2017-2021.
• CI*Rank ⋔ : N/A
• Recent Trend : The trend is rising because the trend is 1.9 with a 95% confidence interval from 0.4 to 3.7.

Fairfield County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 142.3 with a 95% confidence interval from 137.9 to 146.9 and 832 average annual cases over 2017-2021.
• CI*Rank ⋔ : 1 (1, 3)
• Recent Trend : The trend is rising because the trend is 6.1 with a 95% confidence interval from 2.8 to 11.0.

Middlesex County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 138.1 with a 95% confidence interval from 128.8 to 148.0 and 173 average annual cases over 2017-2021.
• CI*Rank ⋔ : 2 (1, 5)
• Recent Trend : The trend is rising because the trend is 9.1 with a 95% confidence interval from 3.9 to 18.8.

New London County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 137.9 with a 95% confidence interval from 130.3 to 145.8 and 263 average annual cases over 2017-2021.
• CI*Rank ⋔ : 3 (1, 5)
• Recent Trend : The trend is rising because the trend is 7.7 with a 95% confidence interval from 1.4 to 18.5.

Tolland County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 132.5 with a 95% confidence interval from 122.3 to 143.5 and 130 average annual cases over 2017-2021.
• CI*Rank ⋔ : 4 (1, 5)
• Recent Trend : The trend is rising because the trend is 5.3 with a 95% confidence interval from 2.2 to 11.9.

Hartford County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 131.8 with a 95% confidence interval from 127.5 to 136.2 and 754 average annual cases over 2017-2021.
• CI*Rank ⋔ : 5 (3, 5)
• Recent Trend : The trend is rising because the trend is 3.4 with a 95% confidence interval from 0.6 to 8.1.

New Haven County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 120.3 with a 95% confidence interval from 116.1 to 124.6 and 666 average annual cases over 2017-2021.
• CI*Rank ⋔ : 6 (6, 6)
• Recent Trend : The trend is rising because the trend is 6.4 with a 95% confidence interval from 4.6 to 8.5.

Litchfield County⁷

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Rate : The incidence rate is 109.0 with a 95% confidence interval from 101.6 to 117.0 and 170 average annual cases over 2017-2021.
• CI*Rank ⋔ : 7 (7, 8)
• Recent Trend : The trend is falling because the trend is -1.8 with a 95% confidence interval from -2.6 to -1.1.

Windham County⁷

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Rate : The incidence rate is 100.7 with a 95% confidence interval from 90.6 to 111.7 and 79 average annual cases over 2017-2021.
• CI*Rank ⋔ : 8 (7, 8)
• Recent Trend : The trend is stable because the trend is 1.7 with a 95% confidence interval from -2.0 to 11.4.

Notes:
Created by statecancerprofiles.cancer.gov on 07/10/2025 4:54 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.

Note: This website still uses Connecticut counties instead of planning regions for consistency of geographies across data topics. If/when all data sources have new planning regions, then this website will switch to using them. 2013 Rural-Urban Continuum Codes will be used for Connecticut counties.

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