Canadian Community Health

Survey – Annual component

2011-2012 and 2012

Public Use Microdata File

Data Liberation Initiative Seminar

Health Statistics Division, Statistics Canada

November 2013

Presentation overview

CCHS survey

Content

Microdata files

Public use microdata file

• Documentation and files

Exploring health data

Questions?

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CCHS Survey

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How it’s organized

Annual

Component

Focus Content

Component

Special

Projects

Canadian Community Health Survey Program

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Objectives

Health surveillance at the national, provincial and sub-provincial levels

Analysis on small populations and rare characteristics

Readily available data to a diversified user community in a timely fashion

Flexible survey instrument

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Design & Coverage

Residents of private households aged 12 and over

All provinces, territories, health regions

Exclusions:

• Indian reserves / crown lands

• institutions (health institutions, prisons, religious institutions, convents, etc.)

• members of Canadian Forces

• certain remote areas (northern Ontario and Québec)

Coverage (general) ~97% of targeted population

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Sample

From 2000 to 2005:

130,000 respondents every 2 years for 3 cycles:

• 2000/01, 2003, 2005

Starting in 2007

• Sample of 65,000 respondents per year

• Six non-overlapping 2 months periods

• Representative of the Canadian population every 2

months, for all provinces

• Sample representative of each of the territories every

year

Content

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Questionnaire

Average interview time (45 min.)

Content:

• Common annual

• Common 1 or 2 year

• Optional

• Rapid response

• Subsample

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Common annual content

• Stable content over time

• Asked of all respondents

• Average length ≈ 20 minutes

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Annual common content topics

Alcohol Use

Chronic Conditions

Contacts with health

professionals

Exposure to Second-hand

Smoke

Flu Shots

Fruit and Vegetable

Consumption

General Health

Pain and Discomfort

Health Care Utilization

Height and Weight

Physical Activities

Restrictions on Activities

Smoking

Administration

Age

Education

Income

Labour Force

Socio-demographics

Person most knowledgeable

about household

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Common one year and two-year

content

• Addresses different data needs

• Rotates every 1 year/2 years/4 years

• Asked of all respondents

• Average length ≈ 10 minutes

Common 1 yr Common 1 yr

Common 2 yr Common 2 yr Common 2 yr

COMMON ANNUAL CONTENT (≈ 20 minutes)

Common 1 yr Common 1 yr Common 1 yr

2007 2010 2009 2008 2011 2012

Common 1 yr

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Common two-year content

2011-2012

Healthy Living

• Sedentary activities

• Food security

• Maternal experiences: Breastfeeding

Mental Well-Being

• Consultation about mental health

• Positive mental health

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One year common content

(2011)

Health services access (Sub-sample)

• Access to health services

• Wait times

Neurological Conditions

(2012)

Chronic Disease

Screening

• PAP

• Mammography

• Colorectal cancer

screening

• Spirometry

• Blood test

• Physical check-up

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Common two-year content

2013-2014

Injuries and Functional Health

• Injuries

• Health Utilities Index (HUI)

• Expanded restriction of activities

• Use of protective equipment

Sexual Behaviours

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One year common content

(2013)

Health services access (Sub-sample)

• Access to health services

• Wait times

(2014)

Health Care Utilisation

• Contact with Health

professionals

• Unmet needs

Economic Burden

• Loss of productivity

• Chronic fatigue syndrome

• Fibromyalgia

• Multiple chemical

sensitivities

Optional content

Changes every year or two

Decided by provincial ministries of health and

health regions

Average length ≈ 10 minutes

≈ 70 unique modules

A few examples

• Changes made to improve health

• Activities of daily living

• Illicit drug use

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Annual CCHS content structure

Optional Y3-Y4

(10 minutes)

2007 2010 2009 2008 2011 2012

Optional Y1-Y2

(10 minutes)

Optional Y5-Y6

(10 minutes)

COMMON ANNUAL CONTENT

(≈ 20 minutes)

Rapid response $ (2 minutes)

Common 1 yr

Common 2 yr Common 2 yr

Common 1 yr Common 1 yr Common 1 yr

Common 2 yr

Common 1 yr Common 1 yr

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Microdata files

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Master

Master, Share, PUMF, Dummy files

Records Variables

DIFFERENT DATA FILES

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Master Share

Master, Share, PUMF, Dummy files

Records Variables

DIFFERENT DATA FILES

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Master Share PUMF

Master, Share, PUMF, Dummy files

Records Variables

DIFFERENT DATA FILES

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Master Share PUMF

Dummy

Master, Share, PUMF, Dummy files

Records Variables

DIFFERENT DATA FILES

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Public Use Microdata File (PUMF)

PUMF creation

Built from Master files

• Disclosure risk vs. most useful data

• Health Region groupings (from 117 to 110)

• Optional content suppression

• Grouped derived variables (age)

• Some variables are suppressed (sensitive variables)

• Special suppressions (Maternal experiences 20-49

year olds)

Most recent (2011-2012 and 2012) PUMF

released November 13, 2013

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The 1 yr and 2 yr PUMF

Both files are on same DVD-ROM.

Users can choose between the two files

2011-2012: common content and optional content

~125,000 sample

2012: common content and optional content

+ additional optional content

but a smaller sample size (~62,000)

Optional content found in the 1 year

file only (2012)

Blood test (BLT)

Youth smoking (YSM)

Social support-utilization (SSU)

Waiting times (WTM)

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DVD-ROM documentation

General documentation

• User Guide

• Questionnaire

• Complement to the user guide

File specific documentation

• Data dictionary, record layout, derived variables, CV

tables…

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PUMF files

HS.txt:

• Accessible through DVD-ROM folders

• SAS and SPSS

B2020:

• Accessible through DVD-ROM application

• B2020 PDF help file (instructions) in menu bar

• B2020probrowser installation program included in

DVD-ROM

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Exploring health data

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Products on www.statcan.gc.ca

Survey documentation

Definitions, data sources and methods

Data

Health Profile – New

CANSIM tables (Health indicators)

Summary tables

Analyses

Health Reports

Health Indicators publication

The Daily

Fact sheets (including Quick Facts by Census Metropolitan Area)

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Health Portal: Health in Canada

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Information on health survey information

and data

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Survey documentation

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Previous reference

periods

2012

Questionnaire

Survey documentation

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CANSIM data tables

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2 main CANSIM tables

•2012 (105-0501)

•2011-2012 combined (105-0502)

Each includes:

Over 35 health indicators, by 5 age groups and sex, Canada, provinces,

territories, health regions and peer groups

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Questions?

Data Liberation Initiative listserve

dlilist@statcan.gc.ca

STC Health Statistics Division

Client Services

613-951-1746, hd-ds@statcan.gc.ca

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