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The objective of this study is to report the population rate of surgical treatment of incident primary female breast tumours diagnosed from 2010 to 2012 overall, and by disease stage in Canada (excluding Quebec). This study uses newly linked Canadian Cancer Registry and hospital discharge data, created in the Canadian Cancer Treatment Linkage Project by Statistics Canada in 2016.

The Canadian Cancer Registry (CCR) represents a collaborative effort between Statistics Canada and the thirteen provincial and territorial cancer registries to create a single database to report annually on cancer incidence and survival at the national and jurisdictional level. While gains have been made to ensure high quality, standardized, and comparable data, the CCR currently lacks information on cancer treatment. The Canadian Council of Cancer Registries (CCCR) identified the need to capture treatment data at the national level as a key strategic priority for 2013/2014. Record linkage was identified as one possible approach to fill this information gap.

The purpose of this study is to examine the feasibility of using record linkage to add cancer treatment information for selected cancers: breast, colorectal and prostate. The objectives are twofold: to assess the quality of the linkage processes and the validity of using linked data to estimate cancer treatment rates at the provincial level. The study is based on the Canadian Cancer Registry (2005 to 2008) linked to the Discharge Abstract Database (DAD) and the National Ambulatory Care Reporting System (NACRS) for four provinces (Ontario, Manitoba, Nova Scotia and Prince Edward Island). The linkage was proposed by Statistics Canada, the CCCR and the Canadian Institute for Health Information (CIHI). The linkage was approved and conducted at Statistics Canada.

The Cancer Incidence in Canada tables provide information on the number of new cases and rates of cancer tumours and patients from 1992 onwards by five-year age-groups and sex for all Canadian provinces and territories as well as information on the primary ICD-O-3 sites of cancer.

This report describes the design, methodology, and results of the first study undertaken by Statistics Canada to measure the impact on Canadian cause of death trends of a new revision of the World Health Organization's International Classification of Diseases (ICD).

Using 1999 Canadian mortality data, Statistics Canada carried out a comparability, or "bridge-coding", study by dual-coding deaths to both the Ninth and Tenth Revisions of the International Classification of Diseases (ICD-9 and ICD-10). The preliminary results of this exercise were used to generate comparability ratios; these ratios measure the net effect of the new revision, with ratios above 1.00 indicating a net increase in deaths classified to a cause of death, and ratios below 1.00 indicating a net decrease.

The comparability ratios derived from dual-coding medical certificates of cause of death presented in this report estimate the size and direction of the disruption to cause of death trends due to the implementation of ICD-10. Researchers and analysts using Canadian mortality data should use these summary measures to calculate comparability-modified death counts and mortality rates to bridge the gap between ICD-9 and ICD-10.

This article examines recent trends in the incidence of and mortality from colorectal cancer among Canadian men and women, then further analyzes trends by three subsites.

From 1981 to 1994, the annual number of mammograms performed in Canada increased from less than 200,000 to more than 1.4 million. By 1994, about three in five women aged 40 and over reported having had a mammogram at some time in their lives. Most of the increase that occurred between 1985 and 1991 was because of greater use of mammography for breast screening. In the early 1990s, the annual numbers and rates stabilized as the number of mammograms performed on a fee-for-service basis declined slightly, while those conducted by provincial/territorial breast screening programs rose. Mammography is increasingly targeted to women aged 50-69 for whom screening is considered to be most effective. About 30% of Canadian women aged 50-69 have had a mammogram within the past year, although just one-fifth of these mammograms were obtained through provincial/territorial breast screening programs. Most mammography in Canada is provided through the fee-for-service system, although about 80% of fee-for-service mammograms are done for screening purposes, and the remaining 20% for diagnostic assessment. This article is based on administrative data provided by provincial/territorial departments of health and by breast screening programs, as well as on data from the National Population Health Survey. Some implications of mammography utilization for breast cancer incidence and mortality rates are assessed, but because of the long lead time between detection and death, it may be too early to reach definitive conclusions.

The Cancer Incidence in Canada tables provide information on the number of new cases and rates of cancer tumours and patients from 1992 onwards by five-year age-groups and sex for all Canadian provinces and territories as well as information on the primary ICD-O-3 sites of cancer.

The objective of this study is to report the population rate of surgical treatment of incident primary female breast tumours diagnosed from 2010 to 2012 overall, and by disease stage in Canada (excluding Quebec). This study uses newly linked Canadian Cancer Registry and hospital discharge data, created in the Canadian Cancer Treatment Linkage Project by Statistics Canada in 2016.

The Canadian Cancer Registry (CCR) represents a collaborative effort between Statistics Canada and the thirteen provincial and territorial cancer registries to create a single database to report annually on cancer incidence and survival at the national and jurisdictional level. While gains have been made to ensure high quality, standardized, and comparable data, the CCR currently lacks information on cancer treatment. The Canadian Council of Cancer Registries (CCCR) identified the need to capture treatment data at the national level as a key strategic priority for 2013/2014. Record linkage was identified as one possible approach to fill this information gap.

The purpose of this study is to examine the feasibility of using record linkage to add cancer treatment information for selected cancers: breast, colorectal and prostate. The objectives are twofold: to assess the quality of the linkage processes and the validity of using linked data to estimate cancer treatment rates at the provincial level. The study is based on the Canadian Cancer Registry (2005 to 2008) linked to the Discharge Abstract Database (DAD) and the National Ambulatory Care Reporting System (NACRS) for four provinces (Ontario, Manitoba, Nova Scotia and Prince Edward Island). The linkage was proposed by Statistics Canada, the CCCR and the Canadian Institute for Health Information (CIHI). The linkage was approved and conducted at Statistics Canada.

This article examines recent trends in the incidence of and mortality from colorectal cancer among Canadian men and women, then further analyzes trends by three subsites.

From 1981 to 1994, the annual number of mammograms performed in Canada increased from less than 200,000 to more than 1.4 million. By 1994, about three in five women aged 40 and over reported having had a mammogram at some time in their lives. Most of the increase that occurred between 1985 and 1991 was because of greater use of mammography for breast screening. In the early 1990s, the annual numbers and rates stabilized as the number of mammograms performed on a fee-for-service basis declined slightly, while those conducted by provincial/territorial breast screening programs rose. Mammography is increasingly targeted to women aged 50-69 for whom screening is considered to be most effective. About 30% of Canadian women aged 50-69 have had a mammogram within the past year, although just one-fifth of these mammograms were obtained through provincial/territorial breast screening programs. Most mammography in Canada is provided through the fee-for-service system, although about 80% of fee-for-service mammograms are done for screening purposes, and the remaining 20% for diagnostic assessment. This article is based on administrative data provided by provincial/territorial departments of health and by breast screening programs, as well as on data from the National Population Health Survey. Some implications of mammography utilization for breast cancer incidence and mortality rates are assessed, but because of the long lead time between detection and death, it may be too early to reach definitive conclusions.

This report describes the design, methodology, and results of the first study undertaken by Statistics Canada to measure the impact on Canadian cause of death trends of a new revision of the World Health Organization's International Classification of Diseases (ICD).

Using 1999 Canadian mortality data, Statistics Canada carried out a comparability, or "bridge-coding", study by dual-coding deaths to both the Ninth and Tenth Revisions of the International Classification of Diseases (ICD-9 and ICD-10). The preliminary results of this exercise were used to generate comparability ratios; these ratios measure the net effect of the new revision, with ratios above 1.00 indicating a net increase in deaths classified to a cause of death, and ratios below 1.00 indicating a net decrease.

The comparability ratios derived from dual-coding medical certificates of cause of death presented in this report estimate the size and direction of the disruption to cause of death trends due to the implementation of ICD-10. Researchers and analysts using Canadian mortality data should use these summary measures to calculate comparability-modified death counts and mortality rates to bridge the gap between ICD-9 and ICD-10.