State Cancer Profiles

Interpretation of Historical Trends Data

Historical Trends (1992-2021)

Incidence, Connecticut, All Cancer Sites, All Races (incl Hisp), All Ages, Both Sexes

Incidence, Connecticut, All Cancer Sites, All Races (incl Hisp), All Ages, Both Sexes

Line graph with 30 years and 3 segments
During 1992-2006, the APC¹ in the rate of cancer was rising: 0.2 with a 95% confidence interval from 0.0 to 0.5.
During 2006-2018, the APC¹ in the rate of cancer was falling: -1.0 with a 95% confidence interval from -2.5 to -0.7.
During 2018-2021, the APC¹ in the rate of cancer was stable: 1.9 with a 95% confidence interval from -0.4 to 2.9.
Yearly points:
In 1992, the observed rate was 516.0. The estimated rate was 507.5.
In 1993, the observed rate was 510.1. The estimated rate was 508.6.
In 1994, the observed rate was 504.4. The estimated rate was 509.7.
In 1995, the observed rate was 499.4. The estimated rate was 510.8.
In 1996, the observed rate was 506.9. The estimated rate was 511.9.
In 1997, the observed rate was 510.0. The estimated rate was 513.0.
In 1998, the observed rate was 515.4. The estimated rate was 514.2.
In 1999, the observed rate was 516.7. The estimated rate was 515.3.
In 2000, the observed rate was 525.3. The estimated rate was 516.4.
In 2001, the observed rate was 532.8. The estimated rate was 517.5.
In 2002, the observed rate was 524.0. The estimated rate was 518.6.
In 2003, the observed rate was 515.4. The estimated rate was 519.8.
In 2004, the observed rate was 508.8. The estimated rate was 520.9.
In 2005, the observed rate was 512.2. The estimated rate was 522.0.
In 2006, the observed rate was 526.9. The estimated rate was 523.2.
In 2007, the observed rate was 521.4. The estimated rate was 518.1.
In 2008, the observed rate was 514.7. The estimated rate was 513.2.
In 2009, the observed rate was 518.3. The estimated rate was 508.3.
In 2010, the observed rate was 504.6. The estimated rate was 503.4.
In 2011, the observed rate was 496.5. The estimated rate was 498.5.
In 2012, the observed rate was 489.3. The estimated rate was 493.8.
In 2013, the observed rate was 482.9. The estimated rate was 489.0.
In 2014, the observed rate was 475.6. The estimated rate was 484.3.
In 2015, the observed rate was 477.0. The estimated rate was 479.7.
In 2016, the observed rate was 480.2. The estimated rate was 475.1.
In 2017, the observed rate was 478.7. The estimated rate was 470.5.
In 2018, the observed rate was 468.9. The estimated rate was 466.0.
In 2019, the observed rate was 469.1. The estimated rate was 475.1.
In 2020, the observed rate was 425.1. The estimated rate was N/A.
In 2021, the observed rate was 495.6. The estimated rate was 493.7.

Notes:

• Created by statecancerprofiles.cancer.gov on 07/05/2025 10:29 pm.
• Regression lines calculated using the Joinpoint Regression Program (Version 5.3.0).
• ¹ The APC is the Annual Percent Change over the time interval. Rates used in the calculation of the APC are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+).


• Explanation of the Calculation of the Trend:
  If the APC is less than -1.5, the trend is falling.
  If the APC is between -1.5 and -0.5, the trend is slightly falling.
  If the APC is between -0.5 and 0.5, the trend is statistically stable.
  If the APC is between 0.5 and 1.5, the trend is slightly rising.
  If the APC is greater than 1.5, the trend is rising.

  
  

  The 2020 incidence rate is displayed but not used in the fit of the trend line(s). Impact of COVID on SEER Cancer Incidence 2020 data.

  Source: Incidence data provided by the SEER Program and the National Program of Cancer Registries SEER*Stat Database United States Department of Health and Human Services, Centers for Disease Control and Prevention. Rates 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 US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. The US Population Data File is used with SEER data. Rates and trends in this graph are computed using the same standard for malignancy. For more information see malignant.html
  
  Source: Death data provided by the National Vital Statistics System public use data file. Death rates calculated by the National Cancer Institute using SEER*Stat. Death rates (deaths 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+). Population counts for denominators are based on Census populations as modified by NCI. The US populations included with the data release have been adjusted for the population shifts due to hurricanes Katrina and Rita for 62 counties and parishes in Alabama, Mississippi, Louisiana, and Texas. US Population Data File is used with mortality data.