## Interpretation of Incidence Rates Data

### Incidence Rate Report for Montana by County

All Cancer Sites, 2009-2013

All Races (includes Hispanic), Both Sexes, 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**

#### Montana^{6,10}

- Rate : The incidence rate is 448.3 with a 95% confidence interval from 442.9 to 453.8 and 5,489 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -2.3 with a 95% confidence interval from -4.1 to -0.5.

#### US (SEER+NPCR)^{1,10}

- Rate : The incidence rate is 448.4 with a 95% confidence interval from 448.1 to 448.7 and 1,540,559 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -1.9 with a 95% confidence interval from -2.6 to -1.2.

#### Golden Valley County^{6,10}

- Rate : The incidence rate is 600.6 with a 95% confidence interval from 429.3 to 837.8 and 9 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 11.7 with a 95% confidence interval from -23.0 to 62.1.

#### Meagher County^{6,10}

- Rate : The incidence rate is 597.3 with a 95% confidence interval from 472.2 to 750.7 and 19 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -1.1 with a 95% confidence interval from -22.1 to 25.6.

#### Petroleum County^{6,10}

- Rate : The incidence rate is 549.4 with a 95% confidence interval from 330.1 to 890.2 and 4 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -6.3 with a 95% confidence interval from -43.9 to 56.4.

#### Treasure County^{6,10}

- Rate : The incidence rate is 546.0 with a 95% confidence interval from 370.0 to 802.8 and 7 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 22.7 with a 95% confidence interval from -11.6 to 70.1.

#### Musselshell County^{6,10}

- Rate : The incidence rate is 541.7 with a 95% confidence interval from 461.2 to 634.1 and 38 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -11.5 with a 95% confidence interval from -16.9 to -5.7.

#### Prairie County^{6,10}

- Rate : The incidence rate is 513.4 with a 95% confidence interval from 361.6 to 717.2 and 10 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -0.6 with a 95% confidence interval from -29.8 to 40.7.

#### Flathead County^{6,10}

- Rate : The incidence rate is 509.8 with a 95% confidence interval from 490.8 to 529.4 and 580 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -0.7 with a 95% confidence interval from -4.8 to 3.7.

#### Custer County^{6,10}

- Rate : The incidence rate is 500.7 with a 95% confidence interval from 450.4 to 555.3 and 78 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -3.1 with a 95% confidence interval from -9.8 to 4.0.

#### Glacier County^{6,10}

- Rate : The incidence rate is 499.9 with a 95% confidence interval from 444.8 to 559.8 and 62 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -6.3 with a 95% confidence interval from -16.1 to 4.7.

#### Powder River County^{6,10}

- Rate : The incidence rate is 484.2 with a 95% confidence interval from 357.2 to 648.0 and 13 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 2.0 with a 95% confidence interval from -21.5 to 32.5.

#### Blaine County^{6,10}

- Rate : The incidence rate is 483.9 with a 95% confidence interval from 413.0 to 563.7 and 35 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -4.6 with a 95% confidence interval from -24.3 to 20.1.

#### Rosebud County^{6,10}

- Rate : The incidence rate is 481.8 with a 95% confidence interval from 419.7 to 550.7 and 47 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 1.1 with a 95% confidence interval from -10.8 to 14.5.

#### Fallon County^{6,10}

- Rate : The incidence rate is 479.7 with a 95% confidence interval from 382.2 to 595.7 and 18 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -9.3 with a 95% confidence interval from -22.5 to 6.2.

#### Roosevelt County^{6,10}

- Rate : The incidence rate is 478.2 with a 95% confidence interval from 419.2 to 543.1 and 50 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -5.5 with a 95% confidence interval from -19.9 to 11.5.

#### Dawson County^{6,10}

- Rate : The incidence rate is 475.9 with a 95% confidence interval from 421.6 to 535.9 and 60 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -2.7 with a 95% confidence interval from -18.6 to 16.4.

#### Lake County^{6,10}

- Rate : The incidence rate is 475.3 with a 95% confidence interval from 443.7 to 508.6 and 183 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -4.7 with a 95% confidence interval from -12.5 to 3.8.

#### Lincoln County^{6,10}

- Rate : The incidence rate is 473.7 with a 95% confidence interval from 437.4 to 512.6 and 148 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 1.7 with a 95% confidence interval from -10.8 to 16.0.

#### Sweet Grass County^{6,10}

- Rate : The incidence rate is 470.3 with a 95% confidence interval from 388.4 to 566.7 and 26 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -5.3 with a 95% confidence interval from -20.0 to 12.0.

#### Stillwater County^{6,10}

- Rate : The incidence rate is 466.5 with a 95% confidence interval from 412.5 to 526.2 and 60 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -6.8 with a 95% confidence interval from -11.2 to -2.2.

#### Hill County^{6,10}

- Rate : The incidence rate is 465.6 with a 95% confidence interval from 420.5 to 514.3 and 82 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -8.4 with a 95% confidence interval from -13.1 to -3.4.

#### Yellowstone County^{6,10}

- Rate : The incidence rate is 465.4 with a 95% confidence interval from 450.9 to 480.3 and 812 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -2.6 with a 95% confidence interval from -8.9 to 4.1.

#### Richland County^{6,10}

- Rate : The incidence rate is 463.5 with a 95% confidence interval from 410.0 to 522.2 and 57 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 0.5 with a 95% confidence interval from -21.1 to 28.0.

#### Toole County^{6,10}

- Rate : The incidence rate is 462.7 with a 95% confidence interval from 389.1 to 546.9 and 30 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -3.0 with a 95% confidence interval from -31.0 to 36.3.

#### Cascade County^{6,10}

- Rate : The incidence rate is 458.0 with a 95% confidence interval from 439.0 to 477.6 and 457 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -4.0 with a 95% confidence interval from -7.5 to -0.5.

#### Mineral County^{6,10}

- Rate : The incidence rate is 457.8 with a 95% confidence interval from 380.9 to 547.8 and 30 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -3.1 with a 95% confidence interval from -25.6 to 26.3.

#### Powell County^{6,10}

- Rate : The incidence rate is 454.6 with a 95% confidence interval from 394.2 to 522.5 and 43 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -13.6 with a 95% confidence interval from -20.2 to -6.5.

#### Jefferson County^{6,10}

- Rate : The incidence rate is 451.9 with a 95% confidence interval from 401.7 to 507.3 and 69 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 3.2 with a 95% confidence interval from -15.7 to 26.4.

#### Lewis and Clark County^{6,10}

- Rate : The incidence rate is 444.1 with a 95% confidence interval from 422.5 to 466.6 and 343 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 1.2 with a 95% confidence interval from -8.7 to 12.3.

#### Daniels County^{6,10}

- Rate : The incidence rate is 439.7 with a 95% confidence interval from 329.0 to 581.6 and 13 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -11.3 with a 95% confidence interval from -33.2 to 17.8.

#### Sanders County^{6,10}

- Rate : The incidence rate is 439.1 with a 95% confidence interval from 393.6 to 489.3 and 83 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 4.6 with a 95% confidence interval from -6.6 to 17.2.

#### Carbon County^{6,10}

- Rate : The incidence rate is 438.0 with a 95% confidence interval from 390.6 to 490.5 and 69 average annual cases over 2009-2013.
- Recent Trend : The trend is rising because the trend is 6.4 with a 95% confidence interval from 2.4 to 10.6.

#### Judith Basin County^{6,10}

- Rate : The incidence rate is 434.9 with a 95% confidence interval from 336.5 to 559.4 and 15 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 2.5 with a 95% confidence interval from -15.5 to 24.3.

#### Silver Bow County^{6,10}

- Rate : The incidence rate is 431.8 with a 95% confidence interval from 404.0 to 461.1 and 190 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -1.9 with a 95% confidence interval from -3.2 to -0.5.

#### Valley County^{6,10}

- Rate : The incidence rate is 431.0 with a 95% confidence interval from 375.7 to 493.2 and 48 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 1.8 with a 95% confidence interval from -16.0 to 23.3.

#### Granite County^{6,10}

- Rate : The incidence rate is 428.1 with a 95% confidence interval from 340.9 to 534.6 and 22 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 11.5 with a 95% confidence interval from -6.3 to 32.8.

#### Park County^{6,10}

- Rate : The incidence rate is 427.6 with a 95% confidence interval from 388.1 to 470.5 and 93 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 0.4 with a 95% confidence interval from -10.8 to 12.9.

#### Big Horn County^{6,10}

- Rate : The incidence rate is 426.0 with a 95% confidence interval from 373.9 to 483.2 and 51 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -0.8 with a 95% confidence interval from -26.0 to 33.0.

#### Deer Lodge County^{6,10}

- Rate : The incidence rate is 425.4 with a 95% confidence interval from 375.8 to 480.6 and 58 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 3.5 with a 95% confidence interval from -5.5 to 13.4.

#### Fergus County^{6,10}

- Rate : The incidence rate is 424.9 with a 95% confidence interval from 382.2 to 471.9 and 80 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -6.7 with a 95% confidence interval from -16.5 to 4.2.

#### Chouteau County^{6,10}

- Rate : The incidence rate is 423.8 with a 95% confidence interval from 358.9 to 497.9 and 33 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 4.7 with a 95% confidence interval from -9.8 to 21.6.

#### Teton County^{6,10}

- Rate : The incidence rate is 423.6 with a 95% confidence interval from 364.0 to 491.5 and 39 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -6.1 with a 95% confidence interval from -19.7 to 9.8.

#### Missoula County^{6,10}

- Rate : The incidence rate is 421.8 with a 95% confidence interval from 404.5 to 439.7 and 476 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -3.3 with a 95% confidence interval from -13.0 to 7.4.

#### Gallatin County^{6,10}

- Rate : The incidence rate is 421.7 with a 95% confidence interval from 401.6 to 442.6 and 352 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -4.6 with a 95% confidence interval from -11.6 to 3.1.

#### Beaverhead County^{6,10}

- Rate : The incidence rate is 417.6 with a 95% confidence interval from 366.0 to 475.1 and 52 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -2.9 with a 95% confidence interval from -12.3 to 7.6.

#### Pondera County^{6,10}

- Rate : The incidence rate is 411.5 with a 95% confidence interval from 349.7 to 481.8 and 35 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -3.5 with a 95% confidence interval from -24.5 to 23.2.

#### Sheridan County^{6,10}

- Rate : The incidence rate is 395.4 with a 95% confidence interval from 323.3 to 482.1 and 24 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -0.5 with a 95% confidence interval from -20.4 to 24.3.

#### Phillips County^{6,10}

- Rate : The incidence rate is 391.2 with a 95% confidence interval from 322.3 to 472.6 and 25 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -11.7 with a 95% confidence interval from -21.9 to -0.3.

#### Ravalli County^{6,10}

- Rate : The incidence rate is 389.4 with a 95% confidence interval from 366.2 to 413.8 and 235 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -1.9 with a 95% confidence interval from -6.4 to 2.9.

#### McCone County^{6,10}

- Rate : The incidence rate is 387.8 with a 95% confidence interval from 280.5 to 528.6 and 11 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -11.5 with a 95% confidence interval from -42.0 to 34.9.

#### Broadwater County^{6,10}

- Rate : The incidence rate is 384.1 with a 95% confidence interval from 323.0 to 454.6 and 30 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 1.1 with a 95% confidence interval from -4.2 to 6.8.

#### Madison County^{6,10}

- Rate : The incidence rate is 357.3 with a 95% confidence interval from 308.1 to 413.3 and 45 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 0.8 with a 95% confidence interval from -19.7 to 26.5.

#### Wibaux County^{6,10}

- Rate : The incidence rate is 346.1 with a 95% confidence interval from 231.2 to 512.6 and 6 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -11.7 with a 95% confidence interval from -28.2 to 8.5.

#### Wheatland County^{6,10}

- Rate : The incidence rate is 339.5 with a 95% confidence interval from 252.7 to 450.8 and 12 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 0.0 with a 95% confidence interval from -21.9 to 28.1.

#### Liberty County^{6,10}

- Rate : The incidence rate is 327.8 with a 95% confidence interval from 245.0 to 432.7 and 11 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is -11.7 with a 95% confidence interval from -34.9 to 19.8.

#### Garfield County^{6,10}

- Rate : The incidence rate is 250.6 with a 95% confidence interval from 162.4 to 381.4 and 5 average annual cases over 2009-2013.
- Recent Trend : The trend is stable because the trend is 0.8 with a 95% confidence interval from -27.4 to 40.1.

#### Carter County^{6,10}

- Rate : The incidence rate is 218.7 with a 95% confidence interval from 129.1 to 360.6 and 4 average annual cases over 2009-2013.
- Recent Trend : The trend is falling because the trend is -21.7 with a 95% confidence interval from -37.7 to -1.6.

**Notes:**

Created by statecancerprofiles.cancer.gov on 12/08/2016 10:52 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 1969-2014 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.

^{1}Source: CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) November 2015 data submission and SEER November 2015 submission as published in

*United States Cancer Statistics*.

^{6}Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) November 2015 data submission.

^{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 1969-2014 US Population Data File is used with NPCR November 2015 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.