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    • 1. Prevention
      • Smoking prevalence
      • Smoking behaviours in current cancer patients
      • Smoking cessation
      • Second-hand smoke exposure
      • Alcohol consumption
      • Adult overweight and obesity
      • Active transportation
      • Physical inactivity
      • Human papillomavirus (HPV) vaccination
      • Fruit and vegetable consumption
      • Geographic variation in colorectal cancer risk
      • Geographic variation in lung cancer risk
    • 2. Screening
      • Cervical cancer screening
      • Breast cancer screening
      • Colorectal cancer screening
      • PSA testing
      • Screening in underserved populations
    • 3. Diagnosis
      • Breast cancer diagnosis wait time
      • Colorectal cancer diagnosis wait time
      • Capture of stage
      • Stage distribution
      • Prostate risk profile
    • 4. Treatment
      • Surgery
        • 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
        • 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
      • Systemic therapy
        • Post-operative chemotherapy for stage III colon cancer patients
        • Post-operative chemotherapy for patients with stage II or IIIA non-small cell lung cancer
    • 5. Person-Centred Perspective
      • Screening for distress
      • Patient satisfaction
      • Place of death
      • Prostate access to palliative radiation
    • 6. Research
      • Adult clinical trial participation
      • Prostate clinical trials participation
      • Pediatric clinical trial participation
      • Cancer research investment
      • Prostate cancer research investment
    • 7. Appropriateness
      • Breast cancer screening outside of guidelines
      • Breast cancer mastectomies done as day surgery
      • Intensive care use in the last two weeks of life
    • 8. Long-term outcomes
      • Breast cancer
      • Lung cancer
      • Colorectal cancer
      • Prostate cancer
      • Pancreatic cancer
  • Disease Site
    • Breast
      • Breast cancer screening
      • Screening in underserved populations
      • Breast cancer diagnosis wait time
      • Capture of stage
      • Stage distribution
      • Surgery
        • Breast cancer resections that are mastectomies
        • The use of breast-conserving surgery versus mastectomies for breast cancer resections
      • Radiation therapy
        • Post-operative radiation therapy for stage I or II breast cancer patients
      • Place of death
      • Adult clinical trial participation
      • Cancer research investment
      • Breast cancer screening outside recommended guidelines
      • Incidence and mortality rates
      • Five-year net survival by income quintile for several cancers in Canada
    • Colorectal
      • Colorectal cancer screening
      • Geographic variation in colorectal cancer risk
      • Screening in underserved populations
      • Colorectal cancer diagnosis wait time
      • Capture of stage
      • Stage distribution
      • Surgery
        • 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
      • Radiation therapy
        • Pre-operative radiation therapy for patients with stage II or III rectal cancer
      • Post-operative chemotherapy for stage III colon cancer patients
      • Place of death
      • Adult clinical trial participation
      • Cancer research investment
      • Incidence and mortality rates
      • Five-year net survival by income quintile for several cancers in Canada
    • Lung
      • Capture of stage
      • Stage distribution
      • Geographic variation in lung cancer risk
      • Resection rates for stage II or IIIA Non-snmall cell lung cancer patients
      • Post-operative chemotherapy for stage II or IIIA non-small cell lung cancer patients
      • Place of death
      • Adult clinical trial participation
      • Cancer research investment
      • Incidence and mortality rates
      • Five-year net survival by income quintile for several cancers in Canada
    • Prostate
      • PSA testing
      • Prostate risk profile
      • Capture of stage
      • Stage distribution
      • Prostate wait times for surgery
      • Prostate wait times for radiation therapy
      • Radical prostatectomy: open versus laparoscopic surgery
      • Prostate patterns of care: radiation and surgical treatment
      • Prostate access to palliative radiation
      • Prostate clinical trials participation
      • Adult clinical trial participation
      • Prostate cancer research investment
      • Cancer research investment
      • Incidence & Mortality Rates
      • Five-year net survival by income quintile for several cancers in Canada
    • Cervical
      • Human papillomavirus (HPV) vaccination
      • Cervical cancer screening
      • Screening in underserved populations
    • Pancreas
      • Incidence and mortality rates
    • Stage Distribution
  • Province & Territory
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  • 7. Appropriateness
  • Breast cancer mastectomies done as day surgery

Breast cancer mastectomies done as day surgery

  • Charts and Tables

    Charts and Tables

    Figure 7.2

    Percentage of breast cancer mastectomies done as day surgery, by jurisdiction — 2014/15–2015/16 fiscal years combined

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    * Suppressed owing to small numbers

    “—” Data not available

    TR: Territories combined

    SK, Territories: includes data for 2014

    Data source: Canadian Institute for Health Information, Hospital Morbidity Database, National Ambulatory Care Reporting System; Alberta Health and Wellness, Alberta Ambulatory Care Reporting System

    Data Table

    JurisdictionNumber of mastectomies done as day surgeryPercent (%)Lower bound of 95% confidence intervalUpper bound of 95% confidence interval
    NB22265.560.270.5
    ON2,18344.142.745.5
    MB12832.728.137.6
    BC57027.525.629.5
    NS9722.118.326.3
    NL8217.614.321.4
    AB1066.35.27.6
    SK51.70.64.0
    TR0.00.0——
    PE****
    QC----

    + Expand Table

    * Suppressed owing to small numbers

    “—” Data not available

    TR: Territories combined

    SK, Territories: includes data for 2014

    Data source: Canadian Institute for Health Information, Hospital Morbidity Database, National Ambulatory Care Reporting System; Alberta Health and Wellness, Alberta Ambulatory Care Reporting System

    Figure 7.7

    Percentage of breast cancer mastectomies done as day surgery, provinces combined† —2008/09-2015/16 fiscal years

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    † Includes BC, AB, MB, ON, NB, NS and NL.

    Data source: Canadian Institute for Health Information, Hospital Morbidity Database, National Ambulatory Care Reporting System; Alberta Health and Wellness, Alberta Ambulatory Care Reporting System.

    Data Table

    YearNumber of mastectomies done as day surgeryPercent (%)Lower bound of 95% confidence intervalUpper bound of 95% confidence interval
    2008/0999620.619.521.8
    2009/101,08121.720.522.8
    2010/111,13121.720.622.9
    2011/121,27124.223.025.4
    2012/131,37127.125.828.3
    2013/141,65330.929.632.1
    2014/151,67231.630.332.9
    2015/161,71634.032.735.4

    + Expand Table

    † Includes BC, AB, MB, ON, NB, NS and NL.

    Data source: Canadian Institute for Health Information, Hospital Morbidity Database, National Ambulatory Care Reporting System; Alberta Health and Wellness, Alberta Ambulatory Care Reporting System.

  • Data specifications

    Data specifications

    Definition: Percentage of breast cancer mastectomies that were performed as day surgery.

    Rationale for measurement: Reporting on mastectomies performed as day surgery allows detection of variations in practice across provinces, and helps to identify opportunities to improve patients’ experiences and reduce system costs by avoiding in-patient stays for patients who could safely recover at home.

    Measurement timeframe:

    1. Data were aggregated at national level: fiscal years 2008/09 to 2015/16
    2. Data were aggregated at provincial level: fiscal years 2014/15-2015/16 combined

    Denominator: Total number of mastectomies for women aged 18+ diagnosed with breast cancer

    Numerator: The number of mastectomies performed as day surgery for women aged 18+ diagnosed with breast cancer

    Exclusion criteria:

    1. Women younger than 18 years of age
    2. Potential duplicate records are identified as discharges with identical values in some of the data elements. In the event that duplicate records are found, the most recent record is retained, the remaining duplicate records are removed
    3. Invalid Health Card Number
    4. Procedures coded as abandoned
    5. Newborns, stillbirths and cadaveric donors
    6. Invalid procedure date
    7. No discharge procedure laterality assigned
    8. Invalid postal codes

    Data availability:

    1. Data were aggregated at national level: BC, AB, MB, ON, NB, NS and NL
    2. Data were aggregated at provincial level: all provinces and territories, except QC

    Stratification:

    1. Data were aggregated at national level: by fiscal year
    2. Data were aggregated at provincial level: by province

    Data source: Canadian Institute for Health Information; Hospital Morbidity Database (HMDB); National Ambulatory Care Reporting System; Alberta Ambulatory Care Reporting System.

    Data retrieval date: November 2017

    Variables details: Not applicable

    Notes from jurisdictions: Not applicable

    Methodology notes:

    1. Analysis was conducted and provided by Canadian Institute for Health Information.
    2. Patients receiving a mastectomy anywhere within the discharge record containing the surgical episode associated with the patient’s first breast resection are considered mastectomy cases.
    3. Based on patient's place of residence.

    Changes to definition compared to previous years: Not applicable

  • Related indicators

    Related Indicators

    Post-operative radiation therapy for patients with stage I or II breast cancer

    Percentage of Stage I or II breast cancer patients receiving radiation following breast-conserving surgery, by age group — from 2009 to 2012 diagnosis years
    View this indicator
    Breast cancer

    Incidence rates for breast cancer in women, by stage at diagnosis and province, age-standardized to the 2011 Canadian population — 2015 diagnosis year
    View this indicator
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