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      • Breast cancer screening
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      • Colorectal cancer screening
      • Geographic variation in colorectal cancer risk
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        • Removal and examination of 12 or more lymph nodes in colon resections
        • Resection rates for stage II or III rectal cancer, stage III colon cancer and stage II or IIIA non-small cell lung cancer patients
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        • Pre-operative radiation therapy for patients with stage II or III rectal cancer
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      • Five-year net survival by income quintile for several cancers in Canada
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      • Capture of stage
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      • Five-year net survival by income quintile for several cancers in Canada
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      • PSA testing
      • Prostate risk profile
      • Capture of stage
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      • Incidence & Mortality Rates
      • Five-year net survival by income quintile for several cancers in Canada
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      • Human papillomavirus (HPV) vaccination
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      • Incidence and mortality rates
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  • Smoking prevalence
  • Smoking behaviours in current cancer patients
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  • Geographic variation in lung cancer risk
  • Alcohol consumption
  • Adult overweight and obesity
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  • Human papillomavirus (HPV) vaccination
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  • Geographic variation in colorectal cancer risk
  • Cervical cancer screening
  • Breast cancer screening
  • Colorectal cancer screening
  • PSA testing
  • Screening in underserved populations
  • Breast cancer diagnosis wait times
  • Colorectal cancer diagnosis wait times
  • Capture of stage
  • Stage distribution
  • Prostate risk profile
  • Surgery
  • Radiation therapy
  • Systemic therapy
  • Removal and examination of 12 or more lymph nodes in colon resections
  • Resection rates for stage II or III rectal cancer, stage III colon cancer and stage II or IIIA non-small cell lung cancer patients
  • The use of breast-conserving surgery versus mastectomies for breast cancer resections
  • Breast cancer resections that are mastectomies
  • High-risk, resource-intensive surgeries for esophageal, pancreatic, liver, lung and ovarian cancers in Canada
  • Prostate wait times for surgery
  • Radical prostatectomy: open versus laparoscopic surgery
  • Radiation therapy wait times
  • Radiation therapy utilization and capacity
  • Pre-operative radiation therapy for patients with stage II or III rectal cancer
  • Post-operative radiation therapy for patients with stage I or II breast cancer
  • Prostate wait times for radiation therapy
  • Prostate patterns of care: radiation and surgical treatment
  • Post-operative chemotherapy for stage III colon cancer patients
  • Post-operative chemotherapy for patients with stage II or IIIA non-small cell lung cancer
  • Screening for distress
  • Patient satisfaction
  • Place of death
  • Prostate access to palliative radiation
  • Adult clinical trial participation
  • Prostate clinical trials participation
  • Pediatric clinical trial participation
  • Cancer research investment
  • Prostate cancer research investment
  • Breast cancer screening outside of guidelines
  • Breast cancer mastectomies done as day surgery
  • Intensive care use in the last two weeks of life
  • Breast cancer
  • Lung cancer
  • Colorectal cancer
  • Prostate cancer
  • Pancreatic cancer
  • Five-year net survival by income quintile for several cancers in Canada
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  • 4. Treatment
  • Surgery
  • Removal and examination of 12 or more lymph nodes in colon resections

Removal and examination of 12 or more lymph nodes in colon resections

  • Charts and Tables

    Charts and Tables

    Figure 4.1

    Percentage of colon resections with 12 or more lymph nodes removed and examined, by jurisdiction — 2011 to 2014 diagnosis years

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    “—” Data not available.
    Data source: Provincial cancer agencies or programs.

    Data Table

    Jurisdiction Year Number of resections with 12+ lymph nodes removed and examined Percent (%)Lower bound of 95% confidence intervalUpper bound of 95% confidence interval
    BC20111,01271.168.773.5
    BC20121,08671.569.273.8
    BC20131,15172.670.374.8
    BC2014----
    AB201181381.578.983.8
    AB201276483.080.585.4
    AB201378184.381.886.6
    AB201489479.076.681.4
    SK201126974.369.578.7
    SK201227174.069.278.5
    SK201330170.265.674.5
    SK201427375.270.479.6
    MB201135486.182.489.3
    MB201230689.585.792.5
    MB201331989.485.792.4
    MB201433291.087.593.7
    ON2011----
    ON2012----
    ON20133,94773.872.675.0
    ON20144,77988.187.288.9
    QC2011----
    QC2012----
    QC2013----
    QC2014----
    NB201119979.373.784.1
    NB201221081.175.885.7
    NB201322279.374.183.9
    NB201421784.479.488.6
    NS201131770.365.874.5
    NS201235277.273.181.0
    NS201329271.466.775.7
    NS201432271.467.075.5
    PE20115371.659.981.5
    PE20124371.758.682.5
    PE20135274.362.484.0
    PE20145073.561.483.5
    NL201122185.780.889.7
    NL201223385.080.389.0
    NL201322790.185.793.5
    NL201425789.585.492.8
    YT2011----
    YT2012----
    YT2013----
    YT2014----
    NT2011----
    NT2012----
    NT2013----
    NT2014----
    NU2011----
    NU2012----
    NU2013----
    NU2014----

    + Expand Table

    “—” Data not available.
    Data source: Provincial cancer agencies or programs.

  • Data specifications

    Data specifications

    Definition: The percentage of colon resections with 12 or more lymph nodes removed and examined within 12 months of diagnosis

    Rationale for measurement: The removal and examination of 12 or more lymph nodes is important for proper staging and subsequent treatment planning and has been associated with improved survival. Most clinical guidelines recommend that a minimum of 12 lymph nodes be removed and examined by a pathologist to more definitively establish a cancer’s nodal status.

    Measurement timeframe: Diagnosis years 2011 to 2014

    Denominator: All invasive colon cancer cases resected within 12 months of diagnosis in the timeframe, which meet the criteria in “Variable details” box

    Numerator: Invasive colon cancer cases that were resected with 12 or more lymph nodes removed and examined within 12 months of diagnosis in the timeframe

    Exclusion criteria: 

    1. Cases with age ≤ 17
    2. Cases with unknown number of lymph nodes removed and examined were excluded

    Data availability:

    • 2011-2014: AB, SK, MB, NB, NS, PE, NL
    • 2011-2013: BC
    • 2013-2014: ON

    Stratification: 

    1. By year
    2. By province

    Data source: Provincial cancer agencies and programs

    Data retrieval date: October 2017

    Variables details: 

    Cancer definition:

    1. Colon cancer was defined as C18 in ICD-O3 with behavior code 3 (invasive)
      C18.1 (Appendix) was excluded
      For the cancer cases with lymphoma Codes M-95 to M-98, sarcoma codes neuroendocrine carcinoma, and squamous cell carcinoma were excluded (see Appendix A).

    Resection identification:

    1. Colon resections were identified using CCI codes: 1NM87 or 1NM89 or 1NM91. CCI code 1NM87BA was excluded
    2. All resections were included regardless of margin status.

    Treatment criteria:

    1. All colon resections were within 12 months of diagnosis. If there were multiple resections, counted the last resection: last resection date (if multiple) – diagnosis date ≤ 365 days

    Notes from jurisdictions:

    • BC: We do not have surgery data past 2014 and since the indicator includes surgery up to 1 year following diagnosis, we cannot provide data for diagnosis year 2014.
    • ON: Synoptic reporting in Ontario completed in 2012. 2011, and part of 2012 are incomplete down to level of lymph node examined counts.
    • PE: Out of province treatment is included if known about.

    Methodology notes:

    1. The cancer incidence sites/types were classified by World Health Organization, International Classification of Diseases for Oncology, Third Edition (ICD- O-3).
    2. The Canadian Classification of Health Interventions (CCI) codes were used to identify surgery types, except AB.

    Changes to definition compared to previous years: Not applicable

  • Related indicators

    Related Indicators

    Resection rates for stage II or III rectal cancer, stage III colon cancer and stage II or IIIA non–small cell lung cancer patients

    Percentage of Stage II or IIIA non-small cell lung cancer patients who had a surgical resection†, by province — from 2009 to 2012 diagnosis years
    View this indicator
    Post-operative chemotherapy for stage III colon cancer patients

    Percentage of Stage III colon cancer patients receiving chemotherapy following surgical resection, by age group — from 2009 to 2012 diagnosis years
    View this indicator
    Colorectal cancer

    Incidence and mortality rates† for colorectal cancer, by sex, Canada — from 1992 to 2014
    View this indicator
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