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Description:

This article investigates associations that may underlie the blurred or positive gradient between socio-economic status (SES) and overweight, and also gender differences, by assessing the distribution of risk factors for overweight across SES groups.

Description:

A selective approach may be used in an ecological study where the aim is to choose a subset of units of analysis (UAs) and produce interpretations about a population of interest (PI) based solely on those UAs. The results for the PI will be reliable if that population is concentrated in the selected UAs and rare in other UAs. This article presents a graphical tool that helps determine whether these conditions are satisfied.

Description: The past 25 years has seen a more or less continuous deterioration in the economic outcomes for immigrants entering Canada. However, economic outcomes for second-generation Canadians (children of immigrants) are more positive, and in spite of the economic difficulties, after four years in Canada most immigrants entering in 2000 remained positive regarding their immigration decision, citing the freedom, safety, rights, security and prospects for the future as the aspects they appreciate most in Canada. This paper reviews what we know about the economic deterioration, and the possible reasons behind it, in particular based on the research conducted at Statistics Canada. It also outlines the data development undertaken by Statistics Canada and its policy department partners to support increased research of this topic. From 2002 to 2008, Statistics Canada released 64 research articles on the above topics, and others related to immigration. The research suggests that through the 1980s and 1990s three factors were associated with the deterioration in economic outcomes: (1) the changing mix of source regions and related issues such as language and school quality, (2) declining returns to foreign experience, and (3) the deterioration in economic outcomes for all new labour market entrants, of which immigrants are a special case. After 2000, the reasons appear to be different, and are associated more with the dramatic increase in the number of engineers and information technology (IT) workers entering Canada, and the IT economic downturn. Data also suggest that, by and large, Canadians continue to see immigration as an important part of the development of Canada and that they continue to support it. The paper reviews Statistics Canada research that indicates that economic outcomes for most second-generation Canadians remain very positive. Finally, there is a discussion of the interaction between immigration and social cohesion in Canada, and possible reasons as to why we have not seen the discontent with immigration policy in Canada that has been observed in some European countries.

Description: This article uses data from the Youth in Transition Survey (YITS) to link the self-rated ability of youth to converse in both English and French at age 21 to the type of language schooling they had received in elementary and high school. YITS collected information on mother tongue, language of school system (at age 15) as well as information (from parents) on whether and when students had been enrolled in some form of immersion, extended or intensive language program. Information was also collected on self-rated ability to converse in French and English. It is therefore possible to look at rates of bilingualism for youth with varying amounts of second-language schooling.

Description:

This Juristat presents a socio-demographic profile of police officers and individuals working in private security occupations. Using the Census of Population and Housing from 1991, 1996, 2001, and 2006 as the primary data sources, employment figures for those working in private security and public policing occupations are provided. Other characteristics of these occupational groups such as gender, age, education, visible minority and Aboriginal status as well as income are also included. The traditional and emerging roles of public police and private security personnel, as well as the systems of governance under which each operates are also discussed.

Description:

This Juristat article describes changes in the characteristics of adults admitted to custody between 2001/2002 and 2006/2007. These characteristics include median age of adults, gender, Aboriginal identity and type of offence. This report also details the short-term and long-term changes in the number of adults admitted to custody, as well as the treatment requirements of adults admitted to custody in 2006/2007.

Description:

This article analyses data on police-reported motor vehicle thefts in Canada. It examines the long and short-term trends at the national, provincial/territorial and census metropolitan levels. The primary motivations for motor vehicle theft, namely "joy-riding" and organized crime, are discussed. Various auto theft prevention strategies, including youth-focused programs and the installation of electronic immobilizers, are highlighted.

Description:

In 2004/2005, the International Crime Victimization Survey (ICVS) was conducted for a fifth time. The purpose of the ICVS is to provide comparable international information on the nature and extent of crime using a standard questionnaire, survey procedures and techniques. The international survey measures the prevalence of victimization among people aged 16 and over, based on a series of ten offences. It also covers the reporting of criminal victimization incidents to the police, satisfaction with the police response, victim support, fear of crime, use of crime prevention measures and attitudes toward sentences.

This article is an adaptation of the publication Criminal Victimisation in International Perspective Key findings from the 2004-2005 ICVS and EU ICS. It compares Canada's results with those of other countries who participated in the 2004/2005 survey, focusing on several aspects: victimization prevalence rates, the rates of reporting to the police, and respondents' satisfaction with the police.

Canada participated in the most recent cycle of the survey conducted by Léger Marketing through the Department of Justice of Canada. It is one of the 30 countries that participated in the 2004/2005 cycle, and one of five industrialized countries to have participated in all cycles of the survey.

Description:

This is the first report in the series. This report presents the first national estimates on the labour market experiences of Aboriginal people living off-reserve from the Labour Force Survey (LFS). These estimates are based on the year 2007 and cover Aboriginal people living off-reserve in the ten provinces. This report examines the labour force characteristics of the Aboriginal people, namely the employment and unemployment rates as well as wages by Aboriginal identity. The report further looks at the estimates by non-Aboriginal as well as Aboriginal, North American Indian and Métis populations. Also included is limited analysis on the Inuit population using the 2006 Census results, since the LFS sample size was too small for this group. Data are presented for the following characteristics: age, sex, educational attainment, province or region and industry. Finally, trend analysis is provided for the four western provinces over a four year period. The previously released report (Catalogue no. 71-587-X) provided analysis for the western provinces from April 2004 to March 2005.

Description:

This paper examines Ontario's and Quebec's adjustments to the resource boom. Higher commodity prices, an appreciating dollar, and increased foreign competition between 2002 and 2007 led to a restructuring of the Central Canadian economies. The restructuring manifested itself in all areas of the economy: manufacturing employment and output declined, while services and construction rose; within manufacturing there were declines across most industries in Ontario, and a shift away from consumer products towards capital products in Quebec; purchasing power increased in Ontario and Quebec as export and import prices adjusted.

Description: This publication presents quarterly information on Canada's National Income and Expenditure Accounts (NIEA), 1947-2008. It contains data on gross domestic product (GDP) by income and by expenditure, saving and investment, borrowing and lending of each of four broad sectors of the economy: (i) persons and unincorporated businesses, (ii) corporate and government business enterprises, (iii) governments and (iv) non-residents. Information is also provided for selected subsectors. The publication begins with an analysis of the economic developments in the most recent quarter. Some issues also contain more technical articles explaining national accounts methodology or analysing a particular aspect of the economy. The publication also includes a glossary, and is no longer being released.

Description: The tables in the topic 'Labour' present data on the paid work of the Canadian workforce, including detailed industry and occupation data, class of worker, and work activity during the reference year. The census is the only source of data covering the entire labour market, including Indian reserves, overseas households, and all provinces and territories.

This topic also presents data on the unpaid work of the Canadian workforce, including unpaid household work, unpaid child care, and unpaid senior care. These data, together with information on paid work, provide a more complete picture of the work activities of all Canadians.

Description: The tables in the topic "Income and earnings" present data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

Description:

A series of supporting data tables accompanies the Inuit analytical article from the 2006 Aboriginal Peoples Survey (APS). These tables provide data at the national level, for each of the four Inuit regions (Nunatsiavut, Nunavik, Nunavut and the Inuvialuit region), along with data for Inuit outside these regions for major themes covered in the analytical article. Data for the Inuit identity population aged 15 and over are provided for: Participation in harvesting activities; diagnosed with arthritis/rheumatism, high blood pressure, asthma, stomach problems or intestinal ulcers, heart problems, tuberculosis and diabetes; smoking status; self-rated health status and; reasons for not completing elementary or secondary school. For Inuit children aged 6 to 14, tables include: contact with a pediatrician, general practitioner or family physician in past 12 months; contact with another medical specialist and; food insecurity.

Description: This publication presents early estimates of mineral production by class and by province, quantities and values.

Description:

Data for Canada, provinces, territories, census divisions, census subdivisions and dissemination areas are shown in this table.

This table is part of the topic 'Labour', which presents data on the paid work of the Canadian workforce, including detailed industry and occupation data, class of worker, and work activity during the reference year. The census is the only source of data covering the entire labour market, including Indian reserves, overseas households, and all provinces and territories.

This topic also presents data on the unpaid work of the Canadian workforce, including unpaid household work, unpaid child care, and unpaid senior care. These data, together with information on paid work, provide a more complete picture of the work activities of all Canadians.

It is possible to subscribe to all the day-of-release topic bundles. Refer to Catalogue no. 97-569-XCB for more information.

Description:

Data for Canada, provinces, territories, census divisions, census subdivisions and dissemination areas are shown in this table.

This table is part of the topic 'Income and earnings,' which presents data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

It is possible to subscribe to all the day-of-release bundles. Refer to Catalogue no. 97-569-XCB for more information.

Description:

This article profiles manure production in Canada and maps manure production by sub-sub-drainage area for 2006.

Description: This new product will present data for specific census topics and population groups according to selected demographic, cultural, and socio-economic characteristics. These detailed 'profile-type' tables expand the analytical depth of basic census information.

Description:

This table presents selected demographic, cultural, labour force, educational and income characteristics focusing on immigration status and period of immigration.

Description:

The context of the discussion is the increasing incidence of international surveys, of which one is the International Tobacco Control (ITC) Policy Evaluation Project, which began in 2002. The ITC country surveys are longitudinal, and their aim is to evaluate the effects of policy measures being introduced in various countries under the WHO Framework Convention on Tobacco Control. The challenges of organization, data collection and analysis in international surveys are reviewed and illustrated. Analysis is an increasingly important part of the motivation for large scale cross-cultural surveys. The fundamental challenge for analysis is to discern the real response (or lack of response) to policy change, separating it from the effects of data collection mode, differential non-response, external events, time-in-sample, culture, and language. Two problems relevant to statistical analysis are discussed. The first problem is the question of when and how to analyze pooled data from several countries, in order to strengthen conclusions which might be generally valid. While in some cases this seems to be straightforward, there are differing opinions on the extent to which pooling is possible and reasonable. It is suggested that for formal comparisons, random effects models are of conceptual use. The second problem is to find models of measurement across cultures and data collection modes which will enable calibration of continuous, binary and ordinal responses, and produce comparisons from which extraneous effects have been removed. It is noted that hierarchical models provide a natural way of relaxing requirements of model invariance across groups.

Description:

Dependent interviewing (DI) is used in many longitudinal surveys to "feed forward" data from one wave to the next. Though it is a promising technique which has been demonstrated to enhance data quality in certain respects, relatively little is known about how it is actually administered in the field. This research seeks to address this issue through behavior coding. Various styles of DI were employed in the English Longitudinal Study of Ageing (ELSA) in January, 2006, and recordings were made of pilot field interviews. These recordings were analysed to determine whether the questions (particularly the DI aspects) were administered appropriately and to explore the respondent's reaction to the fed-forward data. Of particular interest was whether respondents confirmed or challenged the previously-reported information, whether the prior wave data came into play when respondents were providing their current-wave answers, and how any discrepancies were negotiated by the interviewer and respondent. Also of interest was to examine the effectiveness of various styles of DI. For example, in some cases the prior wave data was brought forward and respondents were asked to explicitly confirm it; in other cases the previous data was read and respondents were asked if the situation was still the same. Results indicate varying levels of compliance in terms of initial question-reading, and suggest that some styles of DI may be more effective than others.

Description:

In longitudinal surveys nonresponse often occurs in a pattern that is not monotone. We consider estimation of time-dependent means under the assumption that the nonresponse mechanism is last-value-dependent. Since the last value itself may be missing when nonresponse is nonmonotone, the nonresponse mechanism under consideration is nonignorable. We propose an imputation method by first deriving some regression imputation models according to the nonresponse mechanism and then applying nonparametric regression imputation. We assume that the longitudinal data follow a Markov chain with finite second-order moments. No other assumption is imposed on the joint distribution of longitudinal data and their nonresponse indicators. A bootstrap method is applied for variance estimation. Some simulation results and an example concerning the Current Employment Survey are presented.

Description:

Sample weights can be calibrated to reflect the known population totals of a set of auxiliary variables. Predictors of finite population totals calculated using these weights have low bias if these variables are related to the variable of interest, but can have high variance if too many auxiliary variables are used. This article develops an "adaptive calibration" approach, where the auxiliary variables to be used in weighting are selected using sample data. Adaptively calibrated estimators are shown to have lower mean squared error and better coverage properties than non-adaptive estimators in many cases.

Description:

We propose a method for estimating the variance of estimators of changes over time, a method that takes account of all the components of these estimators: the sampling design, treatment of non-response, treatment of large companies, correlation of non-response from one wave to another, the effect of using a panel, robustification, and calibration using a ratio estimator. This method, which serves to determine the confidence intervals of changes over time, is then applied to the Swiss survey of value added.

Description:

The analysis of stratified multistage sample data requires the use of design information such as stratum and primary sampling unit (PSU) identifiers, or associated replicate weights, in variance estimation. In some public release data files, such design information is masked as an effort to avoid their disclosure risk and yet to allow the user to obtain valid variance estimation. For example, in area surveys with a limited number of PSUs, the original PSUs are split or/and recombined to construct pseudo-PSUs with swapped second or subsequent stage sampling units. Such PSU masking methods, however, obviously distort the clustering structure of the sample design, yielding biased variance estimates possibly with certain systematic patterns between two variance estimates from the unmasked and masked PSU identifiers. Some of the previous work observed patterns in the ratio of the masked and unmasked variance estimates when plotted against the unmasked design effect. This paper investigates the effect of PSU masking on variance estimates under cluster sampling regarding various aspects including the clustering structure and the degree of masking. Also, we seek a PSU masking strategy through swapping of subsequent stage sampling units that helps reduce the resulting biases of the variance estimates. For illustration, we used data from the National Health Interview Survey (NHIS) with some artificial modification. The proposed strategy performs very well in reducing the biases of variance estimates. Both theory and empirical results indicate that the effect of PSU masking on variance estimates is modest with minimal swapping of subsequent stage sampling units. The proposed masking strategy has been applied to the 2003-2004 National Health and Nutrition Examination Survey (NHANES) data release.

Description:

The design of a stratified simple random sample without replacement from a finite population deals with two main issues: the definition of a rule to partition the population into strata, and the allocation of sampling units in the selected strata. This article examines a tree-based strategy which plans to approach jointly these issues when the survey is multipurpose and multivariate information, quantitative or qualitative, is available. Strata are formed through a hierarchical divisive algorithm that selects finer and finer partitions by minimizing, at each step, the sample allocation required to achieve the precision levels set for each surveyed variable. In this way, large numbers of constraints can be satisfied without drastically increasing the sample size, and also without discarding variables selected for stratification or diminishing the number of their class intervals. Furthermore, the algorithm tends not to define empty or almost empty strata, thus avoiding the need for strata collapsing aggregations. The procedure was applied to redesign the Italian Farm Structure Survey. The results indicate that the gain in efficiency held using our strategy is nontrivial. For a given sample size, this procedure achieves the required precision by exploiting a number of strata which is usually a very small fraction of the number of strata available when combining all possible classes from any of the covariates.

Description:

Optimum stratification is the method of choosing the best boundaries that make strata internally homogeneous, given some sample allocation. In order to make the strata internally homogenous, the strata should be constructed in such a way that the strata variances for the characteristic under study be as small as possible. This could be achieved effectively by having the distribution of the main study variable known and create strata by cutting the range of the distribution at suitable points. If the frequency distribution of the study variable is unknown, it may be approximated from the past experience or some prior knowledge obtained at a recent study. In this paper the problem of finding Optimum Strata Boundaries (OSB) is considered as the problem of determining Optimum Strata Widths (OSW). The problem is formulated as a Mathematical Programming Problem (MPP), which minimizes the variance of the estimated population parameter under Neyman allocation subject to the restriction that sum of the widths of all the strata is equal to the total range of the distribution. The distributions of the study variable are considered as continuous with Triangular and Standard Normal density functions. The formulated MPPs, which turn out to be multistage decision problems, can then be solved using dynamic programming technique proposed by Bühler and Deutler (1975). Numerical examples are presented to illustrate the computational details. The results obtained are also compared with the method of Dalenius and Hodges (1959) with an example of normal distribution.

Description:

This paper considers the optimum allocation in multivariate stratified sampling as a nonlinear matrix optimisation of integers. As a particular case, a nonlinear problem of the multi-objective optimisation of integers is studied. A full detailed example including some of proposed techniques is provided at the end of the work.

Description:

The present work illustrates a sampling strategy useful for obtaining planned sample size for domains belonging to different partitions of the population and in order to guarantee the sampling errors of domain estimates be lower than given thresholds. The sampling strategy that covers the multivariate multi-domain case is useful when the overall sample size is bounded and consequently the standard solution of using a stratified sample with the strata given by cross-classification of variables defining the different partitions is not feasible since the number of strata is larger than the overall sample size. The proposed sampling strategy is based on the use of balanced sampling selection technique and on a GREG-type estimation. The main advantages of the solution is the computational feasibility which allows one to easily implement an overall small area strategy considering jointly the sampling design and the estimator and improving the efficiency of the direct domain estimators. An empirical simulation on real population data and different domain estimators shows the empirical properties of the examined sample strategy.

Description:

This boundary file delineates areas of significant agricultural activity in Canada as indicated by the 2006 Census of Agriculture. It is available at the Canada level, except for the territories, and is generalized for small-scale mapping. This agricultural ecumene enables users to thematically map data aggregated to the census division level and limits the data display to those areas where agricultural activity is concentrated in Canada. When used in dot and chloropleth maps, the ecumene concept provides a more accurate depiction of the spatial distribution of data within standard geographic areas such as census divisions. Agricultural indicators including the ratios of total agricultural land to total land area, and total agricultural receipts to total land area were used in generating the agricultural ecumene.

Description:

This boundary file delineates areas of significant agricultural activity in Canada as indicated by the 2006 Census of Agriculture. It is available at the Canada level, except for the territories, and is generalized for small-scale mapping. This agricultural ecumene enables users to thematically map data aggregated to the census division level and limits the data display to those areas where agricultural activity is concentrated in Canada. When used in dot and chloropleth maps, the ecumene concept provides a more accurate depiction of the spatial distribution of data within standard geographic areas such as census divisions. Agricultural indicators including the ratios of total agricultural land to total land area, and total agricultural receipts to total land area were used in generating the agricultural ecumene.

Description: This guide focuses on the following topics: Labour market activity and Unpaid work.

Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description:

This guide focuses on the following topic: Journey to work. Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description:

This guide focuses on the following topics: Labour market activity and Unpaid work.

Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description:

This guide focuses on the following topic: Journey to work.

Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description: The Survey of Labour and Income Dynamics (SLID) conducts an annual labour and income interview in January. The data are collected using computer-assisted interviewing; thus no paper questionnaire is required for data collection. The questions, responses and interview flow for labour and income are documented in another SLID research paper. This document presents the information for the 2007 entry and exit portions of the labour and income interview (reference year 2006).

The entry exit component consists of five separate modules. The entry module is the first set of data collected. It is information collected to update the place of residence, housing conditions and expenses, as well as the household composition. For each person identified in entry, the demographics module collects (or updates) the person's name, date of birth, sex and marital status. Then the relationships module identifies (or updates) the relationship between each respondent and every other household member. The exit module includes questions on who to contact for the next interview and the names, phone numbers and addresses of two contacts to be used only if future tracing of respondents is required. An overview of the tracing component is also included in this document.

Description: The Survey of Labour and Income Dynamics (SLID) is a longitudinal survey which collects information related to the standard of living of individuals and their families. By interviewing the same people over a period of six years, changes and the causes of these changes can be monitored.

A preliminary interview of background information is collected for all respondents aged 16 and over, who enter the SLID sample. Preliminary interviews are conducted for new household members during their first labour and income interview after they join the household. A labour and income interview is collected each year for all respondents 16 years of age and over.

The purpose of this document is to present the questions, possible responses and question flows for the 2007 preliminary, labour and income questionnaire (for the 2006 reference year).

Description:

This report highlights the latest developments and rationale behind recent cycles of the General Social Survey (GSS). Starting with an overview of the GSS mandate and historic cycle topics, we then focus on two recent cycles related to families in Canada: Family Transitions (2006) and Family, Social Support and Retirement (2007). Finally, we give a summary of what is to come in the 2008 GSS on Social Networks, and describe a special project to mark 'Twenty Years of GSS'.

The survey collects data over a twelve month period from the population living in private households in the 10 provinces. For all cycles except Cycles 16 and 21, the population aged 15 and older has been sampled. Cycles 16 and 21 sampled persons aged 45 and older.

Cycle 20 (GSS 2006) is the fourth cycle of the GSS to collect data on families (the first three cycles on the family were in 1990, 1995 and 2001). Cycle 20 covers much the same content as previous cycles on families with some sections revised and expanded. The data enable analysts to measure conjugal and fertility history (chronology of marriages, common-law unions, and children), family origins, children's home leaving, fertility intentions, child custody as well as work history and other socioeconomic characteristics. Questions on financial support agreements or arrangements (for children and the ex-spouse or ex-partner) for separated and divorced families have been modified. Also, sections on social networks, well-being and housing characteristics have been added.

Description: This guide focuses on the following demographic variable: Housing and dwelling characteristics.