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 Incidence Rates Report
National Cancer Institute State Cancer Profiles Centers for Disease Control and Prevention
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Incidence Rate Report for Maryland by County

All Races (includes Hispanic), Female, Breast, All Ages
Sorted by Rate
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.

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
  • Rate - The incidence rate is 128.0 with a 95% confidence interval from 126.2 to 129.7.
  • Average Annual Count - The count is 4,206.
  • Rate Period - The period for the rate is 2006-2010.
  • US (SEER+NPCR)1
  • Rate - The incidence rate is 119.8 with a 95% confidence interval from 119.6 to 120.0.
  • Average Annual Count - The count is 207,460 .
  • Rate Period - The period for the rate is 2006-2010.
  • Allegany County6
  • Rate - The incidence rate is 114.0 with a 95% confidence interval from 100.7 to 128.8.
  • Average Annual Count - The count is 58.
  • Rate Period - The period for the rate is 2006-2010.
  • Charles County6
  • Rate - The incidence rate is 114.7 with a 95% confidence interval from 103.8 to 126.5.
  • Average Annual Count - The count is 85.
  • Rate Period - The period for the rate is 2006-2010.
  • Washington County6
  • Rate - The incidence rate is 116.3 with a 95% confidence interval from 106.2 to 127.2.
  • Average Annual Count - The count is 100.
  • Rate Period - The period for the rate is 2006-2010.
  • Prince Georges County6
  • Rate - The incidence rate is 118.5 with a 95% confidence interval from 113.9 to 123.2.
  • Average Annual Count - The count is 532.
  • Rate Period - The period for the rate is 2006-2010.
  • Wicomico County6
  • Rate - The incidence rate is 118.5 with a 95% confidence interval from 105.9 to 132.3.
  • Average Annual Count - The count is 66.
  • Rate Period - The period for the rate is 2006-2010.
  • Garrett County6
  • Rate - The incidence rate is 118.9 with a 95% confidence interval from 98.0 to 143.3.
  • Average Annual Count - The count is 24.
  • Rate Period - The period for the rate is 2006-2010.
  • Cecil County6
  • Rate - The incidence rate is 119.2 with a 95% confidence interval from 106.5 to 133.1.
  • Average Annual Count - The count is 65.
  • Rate Period - The period for the rate is 2006-2010.
  • Frederick County6
  • Rate - The incidence rate is 120.0 with a 95% confidence interval from 111.5 to 129.1.
  • Average Annual Count - The count is 151.
  • Rate Period - The period for the rate is 2006-2010.
  • Somerset County6
  • Rate - The incidence rate is 121.4 with a 95% confidence interval from 96.9 to 150.4.
  • Average Annual Count - The count is 18.
  • Rate Period - The period for the rate is 2006-2010.
  • Kent County6
  • Rate - The incidence rate is 122.1 with a 95% confidence interval from 96.0 to 153.5.
  • Average Annual Count - The count is 18.
  • Rate Period - The period for the rate is 2006-2010.
  • Baltimore City6
  • Rate - The incidence rate is 122.3 with a 95% confidence interval from 117.1 to 127.7.
  • Average Annual Count - The count is 426.
  • Rate Period - The period for the rate is 2006-2010.
  • St. Marys County6
  • Rate - The incidence rate is 122.4 with a 95% confidence interval from 109.0 to 137.1.
  • Average Annual Count - The count is 62.
  • Rate Period - The period for the rate is 2006-2010.
  • Queen Annes County6
  • Rate - The incidence rate is 122.8 with a 95% confidence interval from 105.0 to 142.9.
  • Average Annual Count - The count is 35.
  • Rate Period - The period for the rate is 2006-2010.
  • Montgomery County6
  • Rate - The incidence rate is 127.5 with a 95% confidence interval from 123.3 to 131.8.
  • Average Annual Count - The count is 720.
  • Rate Period - The period for the rate is 2006-2010.
  • Anne Arundel County6
  • Rate - The incidence rate is 128.4 with a 95% confidence interval from 122.6 to 134.3.
  • Average Annual Count - The count is 385.
  • Rate Period - The period for the rate is 2006-2010.
  • Dorchester County6
  • Rate - The incidence rate is 129.9 with a 95% confidence interval from 109.1 to 153.8.
  • Average Annual Count - The count is 29.
  • Rate Period - The period for the rate is 2006-2010.
  • Caroline County6
  • Rate - The incidence rate is 132.1 with a 95% confidence interval from 109.9 to 157.7.
  • Average Annual Count - The count is 26.
  • Rate Period - The period for the rate is 2006-2010.
  • Howard County6
  • Rate - The incidence rate is 133.4 with a 95% confidence interval from 125.0 to 142.1.
  • Average Annual Count - The count is 202.
  • Rate Period - The period for the rate is 2006-2010.
  • Baltimore County6
  • Rate - The incidence rate is 134.5 with a 95% confidence interval from 129.9 to 139.2.
  • Average Annual Count - The count is 680.
  • Rate Period - The period for the rate is 2006-2010.
  • Carroll County6
  • Rate - The incidence rate is 135.3 with a 95% confidence interval from 125.1 to 146.2.
  • Average Annual Count - The count is 133.
  • Rate Period - The period for the rate is 2006-2010.
  • Harford County6
  • Rate - The incidence rate is 136.0 with a 95% confidence interval from 127.4 to 145.0.
  • Average Annual Count - The count is 191.
  • Rate Period - The period for the rate is 2006-2010.
  • Talbot County6
  • Rate - The incidence rate is 136.3 with a 95% confidence interval from 116.8 to 158.5.
  • Average Annual Count - The count is 41.
  • Rate Period - The period for the rate is 2006-2010.
  • Calvert County6
  • Rate - The incidence rate is 137.0 with a 95% confidence interval from 122.2 to 153.1.
  • Average Annual Count - The count is 65.
  • Rate Period - The period for the rate is 2006-2010.
  • Worcester County6
  • Rate - The incidence rate is 138.5 with a 95% confidence interval from 121.8 to 157.2.
  • Average Annual Count - The count is 56.
  • Rate Period - The period for the rate is 2006-2010.


  • Notes:
    Created by statecancerprofiles.cancer.gov on 07/23/2014 1:45 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 1969-2011 US Population Data File is used for SEER and NPCR incidence rates.
    § The total count for the US (SEER+NPCR) may differ from the summation of the individual states reported in this table. The total uses data from the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission for the following states: California, Kentucky, Louisiana, and New Jersey but data for those states when shown individually are sourced from the SEER November 2012 submission.

    1 Source: CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission and SEER November 2012 submission.
    6 Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission. State rates include rates from metropolitan areas funded by SEER.

    Interpret Rankings provides insight into interpreting cancer incidence statistics. When the population size for a denominator is small, the rates may be unstable. A rate is unstable when a small change in the numerator (e.g., only one or two additional cases) has a dramatic effect on the calculated rate.

    Suppression is used to avoid misinterpretation when rates are unstable.