Interpretation of Incidence Rates Data
Incidence Rate Report for Maryland by County
All Cancer Sites (All Stages^), 2017-2021
All Races (includes Hispanic), Female, All Ages
Sorted by Rate
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
Maryland6
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 422.5 with a 95% confidence interval from 419.6 to 425.5 and 16,730 average annual cases over 2017-2021.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -0.2 to 0.2.
US (SEER+NPCR)1
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 421.1 with a 95% confidence interval from 420.7 to 421.5 and 856,144 average annual cases over 2017-2021.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.2 to 0.1.
Allegany County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 509.8 with a 95% confidence interval from 479.4 to 541.8 and 249 average annual cases over 2017-2021.
- CI*Rank ⋔ : 1 (1, 6)
- Recent Trend : The trend is stable because the trend is 0.9 with a 95% confidence interval from 0.0 to 1.9.
Caroline County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 475.4 with a 95% confidence interval from 434.3 to 519.7 and 105 average annual cases over 2017-2021.
- CI*Rank ⋔ : 2 (1, 19)
- Recent Trend : The trend is rising because the trend is 6.0 with a 95% confidence interval from 0.6 to 9.9.
Worcester County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 473.9 with a 95% confidence interval from 442.2 to 507.6 and 218 average annual cases over 2017-2021.
- CI*Rank ⋔ : 3 (1, 17)
- Recent Trend : The trend is rising because the trend is 1.2 with a 95% confidence interval from 0.3 to 2.1.
Cecil County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 472.9 with a 95% confidence interval from 448.7 to 498.2 and 309 average annual cases over 2017-2021.
- CI*Rank ⋔ : 4 (1, 14)
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -2.3 to 1.0.
Somerset County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 470.6 with a 95% confidence interval from 419.1 to 527.1 and 70 average annual cases over 2017-2021.
- CI*Rank ⋔ : 5 (1, 21)
- Recent Trend : The trend is stable because the trend is 0.7 with a 95% confidence interval from -0.8 to 2.2.
Harford County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 465.4 with a 95% confidence interval from 450.6 to 480.6 and 801 average annual cases over 2017-2021.
- CI*Rank ⋔ : 6 (2, 13)
- Recent Trend : The trend is stable because the trend is -2.4 with a 95% confidence interval from -4.5 to 0.3.
Dorchester County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 456.7 with a 95% confidence interval from 417.2 to 499.2 and 115 average annual cases over 2017-2021.
- CI*Rank ⋔ : 7 (1, 20)
- Recent Trend : The trend is rising because the trend is 1.1 with a 95% confidence interval from 0.4 to 1.7.
Wicomico County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 456.7 with a 95% confidence interval from 432.7 to 481.7 and 295 average annual cases over 2017-2021.
- CI*Rank ⋔ : 8 (2, 18)
- Recent Trend : The trend is stable because the trend is -5.8 with a 95% confidence interval from -14.5 to 1.2.
Baltimore County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 456.0 with a 95% confidence interval from 448.0 to 464.1 and 2,682 average annual cases over 2017-2021.
- CI*Rank ⋔ : 9 (4, 14)
- Recent Trend : The trend is rising because the trend is 0.5 with a 95% confidence interval from 0.1 to 1.5.
Carroll County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 453.7 with a 95% confidence interval from 435.8 to 472.3 and 524 average annual cases over 2017-2021.
- CI*Rank ⋔ : 10 (3, 17)
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -0.2 to 0.6.
Queen Annes County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 452.2 with a 95% confidence interval from 419.2 to 487.3 and 155 average annual cases over 2017-2021.
- CI*Rank ⋔ : 11 (2, 20)
- Recent Trend : The trend is stable because the trend is 0.5 with a 95% confidence interval from -0.6 to 1.7.
Talbot County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 449.9 with a 95% confidence interval from 413.7 to 488.7 and 157 average annual cases over 2017-2021.
- CI*Rank ⋔ : 12 (1, 20)
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -0.7 to 1.2.
Washington County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 446.2 with a 95% confidence interval from 427.2 to 465.8 and 454 average annual cases over 2017-2021.
- CI*Rank ⋔ : 13 (3, 19)
- Recent Trend : The trend is stable because the trend is 0.3 with a 95% confidence interval from -0.2 to 0.8.
St. Marys County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 439.6 with a 95% confidence interval from 416.3 to 463.9 and 278 average annual cases over 2017-2021.
- CI*Rank ⋔ : 14 (4, 20)
- Recent Trend : The trend is rising because the trend is 0.6 with a 95% confidence interval from 0.1 to 1.2.
Calvert County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 437.1 with a 95% confidence interval from 412.6 to 462.9 and 254 average annual cases over 2017-2021.
- CI*Rank ⋔ : 15 (4, 20)
- Recent Trend : The trend is stable because the trend is -0.1 with a 95% confidence interval from -0.8 to 0.8.
Baltimore City6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 436.5 with a 95% confidence interval from 426.8 to 446.4 and 1,634 average annual cases over 2017-2021.
- CI*Rank ⋔ : 16 (9, 19)
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -0.5 to 0.4.
Anne Arundel County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 436.3 with a 95% confidence interval from 426.5 to 446.3 and 1,580 average annual cases over 2017-2021.
- CI*Rank ⋔ : 17 (9, 19)
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -0.5 to 0.6.
Frederick County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 424.5 with a 95% confidence interval from 410.1 to 439.3 and 692 average annual cases over 2017-2021.
- CI*Rank ⋔ : 18 (12, 21)
- Recent Trend : The trend is stable because the trend is -0.6 with a 95% confidence interval from -1.6 to 0.4.
Charles County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 411.2 with a 95% confidence interval from 393.0 to 430.0 and 403 average annual cases over 2017-2021.
- CI*Rank ⋔ : 19 (15, 22)
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -0.4 to 0.9.
Kent County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 405.1 with a 95% confidence interval from 356.3 to 459.4 and 67 average annual cases over 2017-2021.
- CI*Rank ⋔ : 20 (4, 24)
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -0.6 to 1.0.
Howard County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 398.8 with a 95% confidence interval from 386.2 to 411.8 and 782 average annual cases over 2017-2021.
- CI*Rank ⋔ : 21 (18, 23)
- Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.0 to 0.0.
Garrett County6
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 387.1 with a 95% confidence interval from 348.7 to 429.1 and 87 average annual cases over 2017-2021.
- CI*Rank ⋔ : 22 (12, 24)
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -0.8 to 1.3.
Montgomery County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 386.3 with a 95% confidence interval from 379.5 to 393.2 and 2,613 average annual cases over 2017-2021.
- CI*Rank ⋔ : 23 (20, 23)
- Recent Trend : The trend is stable because the trend is -0.3 with a 95% confidence interval from -0.7 to 0.1.
Prince Georges County6
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 370.3 with a 95% confidence interval from 363.2 to 377.5 and 2,179 average annual cases over 2017-2021.
- CI*Rank ⋔ : 24 (22, 24)
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -0.4 to 0.4.
Notes:
Created by statecancerprofiles.cancer.gov on 01/13/2025 1:51 am.
State Cancer Registries may provide more current or more local data.
Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
† 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.
‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.
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+).
⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. More information about methodology can be found on the CI*Rank website.
Φ Rural-Urban Continuum Codes provided by the USDA.
1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2023 submission.
6 Source: National Program of Cancer Registries SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention (based on the 2023 submission).
8 Source: Incidence data provided by the SEER Program. AAPCs are calculated by the Joinpoint Regression Program and are based on APCs. Data 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. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used with SEER November 2023 data.
Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.