## Interpretation of Incidence Rates Data

#### 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.

**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**

**Line by Line Interpretation of the Report**

**Maryland**^{6,10}- Rate : The incidence rate is 129.9 with a 95% confidence interval from 128.1 to 131.6 and 4,418 average annual cases over 2008-2012.
- Recent Trend : The trend is falling because the trend is -2.0 with a 95% confidence interval from -2.6 to -1.3.

**US (SEER+NPCR)**^{1,10}- Rate : The incidence rate is 123.0 with a 95% confidence interval from 122.8 to 123.2 and 220,205 § average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -1.7 to 0.8.

**Garrett County**^{6,10}- Rate : The incidence rate is 108.4 with a 95% confidence interval from 88.4 to 131.8 and 22 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -5.7 with a 95% confidence interval from -34.0 to 34.5.

**St. Marys County**^{6,10}- Rate : The incidence rate is 109.0 with a 95% confidence interval from 96.6 to 122.5 and 58 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -9.3 with a 95% confidence interval from -18.6 to 1.1.

**Somerset County**^{6,10}- Rate : The incidence rate is 110.0 with a 95% confidence interval from 86.4 to 138.4 and 16 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -10.9 with a 95% confidence interval from -38.6 to 29.3.

**Kent County**^{6,10}- Rate : The incidence rate is 114.1 with a 95% confidence interval from 90.0 to 143.6 and 18 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 2.2 with a 95% confidence interval from -29.8 to 48.8.

**Allegany County**^{6,10}- Rate : The incidence rate is 114.4 with a 95% confidence interval from 101.0 to 129.2 and 58 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -3.7 with a 95% confidence interval from -14.5 to 8.4.

**Queen Annes County**^{6,10}- Rate : The incidence rate is 117.8 with a 95% confidence interval from 101.0 to 136.9 and 36 average annual cases over 2008-2012.
- Recent Trend : The trend is falling because the trend is -11.7 with a 95% confidence interval from -16.6 to -6.6.

**Charles County**^{6,10}- Rate : The incidence rate is 119.4 with a 95% confidence interval from 108.5 to 131.2 and 92 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -0.8 with a 95% confidence interval from -15.4 to 16.4.

**Cecil County**^{6,10}- Rate : The incidence rate is 119.6 with a 95% confidence interval from 107.1 to 133.3 and 69 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 4.3 with a 95% confidence interval from -5.1 to 14.6.

**Prince Georges County**^{6,10}- Rate : The incidence rate is 121.0 with a 95% confidence interval from 116.4 to 125.7 and 564 average annual cases over 2008-2012.
- Recent Trend : The trend is falling because the trend is -4.1 with a 95% confidence interval from -5.1 to -3.1.

**Frederick County**^{6,10}- Rate : The incidence rate is 122.0 with a 95% confidence interval from 113.5 to 130.9 and 162 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -1.2 with a 95% confidence interval from -5.0 to 2.7.

**Wicomico County**^{6,10}- Rate : The incidence rate is 125.4 with a 95% confidence interval from 112.4 to 139.5 and 72 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -1.7 with a 95% confidence interval from -21.3 to 22.8.

**Caroline County**^{6,10}- Rate : The incidence rate is 125.5 with a 95% confidence interval from 104.1 to 150.1 and 25 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -7.4 with a 95% confidence interval from -23.2 to 11.6.

**Dorchester County**^{6,10}- Rate : The incidence rate is 125.7 with a 95% confidence interval from 105.4 to 149.1 and 29 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -8.0 with a 95% confidence interval from -24.0 to 11.3.

**Montgomery County**^{6,10}- Rate : The incidence rate is 126.6 with a 95% confidence interval from 122.5 to 130.9 and 743 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -1.3 with a 95% confidence interval from -7.1 to 5.0.

**Washington County**^{6,10}- Rate : The incidence rate is 126.7 with a 95% confidence interval from 116.2 to 137.9 and 112 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 3.4 with a 95% confidence interval from -2.8 to 9.9.

**Baltimore City**^{6,10}- Rate : The incidence rate is 127.5 with a 95% confidence interval from 122.2 to 133.0 and 452 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -1.9 with a 95% confidence interval from -6.6 to 3.0.

**Anne Arundel County**^{6,10}- Rate : The incidence rate is 129.0 with a 95% confidence interval from 123.4 to 134.9 and 405 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -2.3 with a 95% confidence interval from -7.0 to 2.8.

**Howard County**^{6,10}- Rate : The incidence rate is 130.8 with a 95% confidence interval from 122.8 to 139.2 and 210 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -3.8 with a 95% confidence interval from -11.6 to 4.8.

**Carroll County**^{6,10}- Rate : The incidence rate is 134.3 with a 95% confidence interval from 124.3 to 144.9 and 139 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -1.3 with a 95% confidence interval from -16.2 to 16.3.

**Baltimore County**^{6,10}- Rate : The incidence rate is 136.9 with a 95% confidence interval from 132.3 to 141.6 and 703 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -2.7 with a 95% confidence interval from -6.0 to 0.6.

**Harford County**^{6,10}- Rate : The incidence rate is 138.3 with a 95% confidence interval from 129.8 to 147.3 and 203 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is -4.5 with a 95% confidence interval from -11.1 to 2.6.

**Worcester County**^{6,10}- Rate : The incidence rate is 139.6 with a 95% confidence interval from 122.4 to 158.9 and 55 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 0.2 with a 95% confidence interval from -7.1 to 8.0.

**Talbot County**^{6,10}- Rate : The incidence rate is 141.5 with a 95% confidence interval from 121.7 to 164.0 and 43 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 6.4 with a 95% confidence interval from -5.6 to 19.9.

**Calvert County**^{6,10}- Rate : The incidence rate is 143.0 with a 95% confidence interval from 128.1 to 159.1 and 71 average annual cases over 2008-2012.
- Recent Trend : The trend is stable because the trend is 5.0 with a 95% confidence interval from -4.8 to 16.0.

**Notes:**

Created by statecancerprofiles.cancer.gov on 07/30/2015 2:11 pm.

Data for the United States does not include data from Nevada.

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 1969-2013 US Population Data File is used for SEER and NPCR incidence rates.

‡ Incidence data come from different sources. Due to different years of data availability, most of the trends are AAPCs based on APCs but some are APCs calculated in SEER*Stat. Please refer to the source for each area for additional information.

§ 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 2015 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 2014 submission.

^{1}Source: CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) November 2014 data submission and SEER November 2014 submission.

^{6}Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) November 2014 data submission. State rates include rates from metropolitan areas funded by SEER.

^{10}Source: Incidence data provided by the National Program of Cancer Registries (NPCR). EAPCs calculated by the National Cancer Institute using SEER*Stat. Rates 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 1969-2013 US Population Data File is used with NPCR November 2014 data.

Please note that the data comes from different sources. Due to different years of data availablility, most of the trends are AAPCs based on APCs but some are APCs calculated in SEER*Stat. Please refer to the source for each graph for additional information.

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.