Interpretation of Incidence Rates Data
Incidence Rate Report for Massachusetts by County
Breast (All Stages^), 2016-2020
All Races (includes Hispanic), Female, All Ages
Sorted by Count
Explanation of Column HeadersObjective - 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
Massachusetts7
- Rate : The incidence rate is 136.0 with a 95% confidence interval from 134.4 to 137.6 and 6,008 average annual cases over 2016-2020.
- CI*Rank⋔ : N/A
- Recent Trend : The trend is rising because the trend is 0.3 with a 95% confidence interval from 0.1 to 0.8.
US (SEER+NPCR)1
- Rate : The incidence rate is 127.0 with a 95% confidence interval from 126.8 to 127.2 and 249,750 average annual cases over 2016-2020.
- CI*Rank⋔ : N/A
- Recent Trend : The trend is rising because the trend is 0.5 with a 95% confidence interval from 0.3 to 0.7.
Middlesex County7
- Rate : The incidence rate is 140.3 with a 95% confidence interval from 136.9 to 143.7 and 1,384 average annual cases over 2016-2020.
- CI*Rank⋔ : 6 (3, 8)
- Recent Trend : The trend is stable because the trend is -0.1 with a 95% confidence interval from -0.4 to 0.3.
Essex County7
- Rate : The incidence rate is 140.8 with a 95% confidence interval from 136.1 to 145.7 and 736 average annual cases over 2016-2020.
- CI*Rank⋔ : 5 (3, 8)
- Recent Trend : The trend is rising because the trend is 0.7 with a 95% confidence interval from 0.3 to 1.9.
Worcester County7
- Rate : The incidence rate is 133.3 with a 95% confidence interval from 128.7 to 138.0 and 694 average annual cases over 2016-2020.
- CI*Rank⋔ : 8 (6, 11)
- Recent Trend : The trend is rising because the trend is 0.6 with a 95% confidence interval from 0.1 to 1.1.
Norfolk County7
- Rate : The incidence rate is 145.9 with a 95% confidence interval from 140.8 to 151.1 and 678 average annual cases over 2016-2020.
- CI*Rank⋔ : 3 (2, 6)
- Recent Trend : The trend is stable because the trend is 0.8 with a 95% confidence interval from -1.6 to 3.3.
Plymouth County7
- Rate : The incidence rate is 142.7 with a 95% confidence interval from 136.9 to 148.6 and 512 average annual cases over 2016-2020.
- CI*Rank⋔ : 4 (3, 7)
- Recent Trend : The trend is stable because the trend is 0.6 with a 95% confidence interval from -1.6 to 3.2.
Suffolk County7
- Rate : The incidence rate is 116.4 with a 95% confidence interval from 111.7 to 121.3 and 481 average annual cases over 2016-2020.
- CI*Rank⋔ : 14 (11, 14)
- Recent Trend : The trend is stable because the trend is -0.6 with a 95% confidence interval from -1.2 to 0.0.
Bristol County7
- Rate : The incidence rate is 126.6 with a 95% confidence interval from 121.3 to 132.1 and 470 average annual cases over 2016-2020.
- CI*Rank⋔ : 10 (7, 13)
- Recent Trend : The trend is stable because the trend is 0.1 with a 95% confidence interval from -0.4 to 0.7.
Hampden County7
- Rate : The incidence rate is 128.8 with a 95% confidence interval from 122.9 to 134.9 and 391 average annual cases over 2016-2020.
- CI*Rank⋔ : 9 (7, 13)
- Recent Trend : The trend is stable because the trend is -0.1 with a 95% confidence interval from -0.6 to 0.4.
Barnstable County7
- Rate : The incidence rate is 155.4 with a 95% confidence interval from 146.2 to 165.1 and 310 average annual cases over 2016-2020.
- CI*Rank⋔ : 2 (1, 4)
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -0.7 to 0.7.
Berkshire County7
- Rate : The incidence rate is 126.6 with a 95% confidence interval from 115.8 to 138.2 and 125 average annual cases over 2016-2020.
- CI*Rank⋔ : 11 (6, 14)
- Recent Trend : The trend is stable because the trend is -0.6 with a 95% confidence interval from -1.4 to 0.1.
Hampshire County7
- Rate : The incidence rate is 121.3 with a 95% confidence interval from 111.3 to 132.1 and 124 average annual cases over 2016-2020.
- CI*Rank⋔ : 13 (7, 14)
- Recent Trend : The trend is falling because the trend is -7.2 with a 95% confidence interval from -11.8 to -4.3.
Franklin County7
- Rate : The incidence rate is 124.3 with a 95% confidence interval from 110.6 to 139.4 and 71 average annual cases over 2016-2020.
- CI*Rank⋔ : 12 (5, 14)
- Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -2.8 to 1.8.
Dukes County7
- Rate : The incidence rate is 135.4 with a 95% confidence interval from 105.8 to 171.4 and 18 average annual cases over 2016-2020.
- CI*Rank⋔ : 7 (2, 14)
- Recent Trend : The trend is stable because the trend is -0.2 with a 95% confidence interval from -3.9 to 3.7.
Nantucket County7
- Rate : The incidence rate is 209.5 with a 95% confidence interval from 161.2 to 268.1 and 14 average annual cases over 2016-2020.
- CI*Rank⋔ : 1 (1, 2)
- Recent Trend : The trend is stable because the trend is 1.1 with a 95% confidence interval from -1.1 to 3.5.
Notes:
Created by statecancerprofiles.cancer.gov on 07/06/2024 8:06 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 stage.
Source: SEER and NPCR data. For more specific information please see the table.
Data for the United States does not include data from Nevada.
Data for the United States does not include Puerto Rico.
When displaying county information, the CI*Rank for the state is not shown because it's not comparable. To see the state CI*Rank please view the statistics at the US By State level.