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Canadian Community Health Survey (CCHS) – Errata

Date: June 2010

To: Users of the 2007, 2008 and 2007-2008 CCHS master and share microdata files

Subject: Error corrected in the Household Food Security Status – Modified version derived variable, FSCDHFS2

Product(s) affected: 2007, 2008, 2007-2008 Share and Master microdata files.

Year(s) affected: 2007, 2008 and 2007-2008

Description of the problem(s):
Some households with children were improperly classified as moderately food insecure but should have been classified as severely food insecure as a result of a specification error. The error was corrected starting with the CCHS 2009 data.

Suggested correction(s): To recalculate this derived variable for 2007, 2008 and 2007-2008, please use the specifications below.

Correction steps: The correction is highlighted and in bold font.

[DHHTDKS = 1 and
(2 <= FSCASUM <= 5) and
(2 <= FSCCSUM <= 4)] or

[DHHTDKS = 1 and
(((2 <= FSCASUM <= 5) and( FSCCSUM <= 4)) or
(( FSCASUM <= 5) and(2 <= FSCCSUM <= 4)))]

or [DHHTDKS = 0 and
(2 <= FSCASUM <= 5)]

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:

Health Statistics Division
613-951-1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: October 2009

To: Users of the 2008 CCHS master and share microdata files

Subject: Error wth the flow of some answers in question CCC_Q073

Product(s) affected: 2008 Share and Master microdata files.

Year(s) affected: 2008

Description of the problem(s):
Respondents who answered question CCC_Q073 as “2 – No”, “Refusal” or “Don’t Know” skipped to question CCC_Q081, while they should have flowed to condition CCC_C073A.

Therefore, respondents who did not take medication for hypertension are automatically excluded from the universe of questions CCC_Q073A and CCC_Q073B.

Suggested correction(s): The error was corrected starting with the CCHS 2009 data.

Correction steps: N/A

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: October 2009

To: Users of the 2007 and 2005 CCHS master and share files

Subject: Certain values were assigned to the wrong variables.

Product(s) affected:
2007: Master file and share files for all provinces and territories.
2005: Master file and its subsamples, share file and its subsamples and public use microdata file and its subsamples.

Year(s) affected: 2007and 2005

Description of the problem(s): When 2007 and 2005 data was processed, the values of certain variables were assigned to other variables. See the table below for the modules and variables affected and the provinces affected in the case of optional content.

2007
Modules: Breast examination (BRX) Home health care services (HMC) Mammography (MAM)
Content type Optional Optional Optional
Provinces affected New Brunswick, Saskatchewan and the Northwest Territories Ontario Newfoundland and Labrador,
Nova Scotia, New Brunswick,
Ontario, Saskatchewan and the Northwest Territories
Variables containing incorrect values BRX_16N
BRX_16O
BRX_16M
HMC_10I
HMC_10C
HMC_10D
HMC_10E
HMC_10F
HMC_10G
HMC_10H
HMC_15N
HMC_15O
HMC_15M
HMC_16I
HMC_16C
HMC_16D
HMC_16E
HMC_16F
HMC_16G
HMC_16H
MAM_36N
MAM_36O
MAM_36M
2005
Module Breast examination (BRXE) Home health care services (HMCE) Mammography (MAME) Alcohol use (ALCE) Sexual behaviour
(SXBE)
Content type Optional Common Common Common Common
Provinces/
territories affected
Ontario
Yukon
All All All All
Variables BRXE_16N
BRXE_16O
BRXE_16M
HMCE_10C
HMCE_10D
HMCE_10E
HMCE_10F
HMCE_10G
HMCE_10H
HMCE_10I
HMCE_15M
HMCE_15N
HMCE_15O
HMCE_16C
HMCE_16D
HMCE_16E
HMCE_16F
HMCE_16G
HMCE_16H
HMCE_16I
MAME_36M
MAME_36N
MAME_36O
ALCE_7M
ALCE_7N
SXBE_13E
SXBE_13F
SXBE_13G

Suggested correction(s): Users must recover the correct values from the variables where they are found. The table below shows the correspondence between the variables containing incorrect values (column A) and the names of the variables to which they must be renamed (column B) to obtain the correct values. The table is shown by product year.

Suggested correction(s)
2007 2005
Column A
Variables with incorrect values
Column B
Name of the renamed variable
Column A
Variables with incorrect values
Column B
Name of the renamed variable
BRX_16N BRX_16O BRXE_16N BRXE_16O
BRX_16O BRX_16M BRXE_16O BRXE_16M
BRX_16M BRX_16N BRXE_16M BRXE_16N
HMC_10I HMC_10H HMCE_10I HMCE_10H
HMC_10C HMC_10I HMCE_10C HMCE_10I
HMC_10D HMC_10C HMCE_10D HMCE_10C
HMC_10E HMC_10D HMCE_10E HMCE_10D
HMC_10F HMC_10E HMCE_10F HMCE_10E
HMC_10G HMC_10F HMCE_10G HMCE_10F
HMC_10H HMC_10G HMCE_10H HMCE_10G
HMC_15N HMC_15O HMCE_15N HMCE_15O
HMC_15O HMC_15M HMCE_15O HMCE_15M
HMC_15M HMC_15N HMCE_15M HMCE_15N
HMC_16I HMC_16H HMCE_16I HMCE_16H
HMC_16C HMC_16I HMCE_16C HMCE_16I
HMC_16D HMC_16C HMCE_16D HMCE_16C
HMC_16E HMC_16D HMCE_16E HMCE_16D
HMC_16F HMC_16E HMCE_16F HMCE_16E
HMC_16G HMC_16F HMCE_16G HMCE_16F
HMC_16H HMC_16G HMCE_16H HMCE_16G
MAM_36N MAM_36O MAME_36N MAME_36O
MAM_36O MAM_36M MAME_36O MAME_36M
MAM_36M MAM_36N MAME_36M MAME_36N
ALCE_7N ALCE_7M
ALCE_7M ALCE_7N
SXBE_13F SXBE_13E
SXBE_13G SXBE_13F
SXBE_13E SXBE_13G

Correction process:

  1. Create a temporary file including the variables in column A.
  2. Rename the variables in column A to temporary variables based on the corresponding variables in column B (e.g. BRX_16M to BRX_16N_00, and HMC_10D to HMC_10C_00, etc.).
  3. Rename the temporary variables (e.g. BRX_16N_00, HMC_10C_00, etc.) to the correct variables as indicated in column B (e.g. BRX_16N, HMC_10C, etc.).
  4. Combine the temporary file which now includes the variables with their correct values with the main data file.

Contact us:

We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: October 2009

To: 2007 master or share file users

Subject: Incorrect variable labels

Product(s) affected: Master and share files

Year(s) affected: 2007

Description of the problem(s):
The labels attached to certain variables are incorrect in the master file and the share files and in their respective data dictionnary. The table below gives the variable names along with their old and new labels.

Description of the problem(s)
Variable Question Labels in the files and codebooks Must be replaced by:
SXB_13F Contraceptive method
last time
Other Contraceptive injections
SXB_13G Contraceptive method
last time
Contraceptive injections None
SXB_13E Contraceptive method
last time
None Other

Suggested correction(s): Rename the variables with the correct names.

Correction steps: N/A

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Health Statistics Division
613–951–1746
Electronic mail:CCHS–ESCC@statcan.gc.ca

Date: October 2009

To: Users of the 2005 master or share file

Subject: The household weight of the master and all share files is invalid (small error)

Product(s) affected: Household weight file hs_hhwt.txt

Year(s) affected: 2005

Description of the problem(s): The main household weight variable (WTSE_MHH on the master file and WTSE_SHH on the share file) on all the HS_HHWT.txt file is invalid and differs from their corresponding FWGT weight on the B5_HH.txt Bootstrap file.

Since Bootvar uses the variable FWGT to calculate the final estimates, any analysis on the 2005 Households weights using Bootvar would be correct and would not need to be redone. However, any preliminary analysis based only on the variables WTSE_MHH or WTSE_SHH would be incorrect and would need to be revised.

Users should know that the errors were considered minimal.

Suggested correction(s): The master and share files have been redone with the corrected household weight and are available upon request.

Correction steps: N/A

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: December 21, 2007

To: Data users of cycle 2.1, sub–sample 3 – Master and share file

Subject: Error on number of person interviewed in the following document: “Guidelines for the use of sub–sample variables”

Cycle(s) affected: Cycle 2.1

Product(s) affected: Guidelines for the use of sub–sample variables – Master and share file

Description of the problem(s):

Page 7 of the document:

  • Number 18,981 replaces 18,091 in the following sentence:
    “A total of 18,981 respondents were interviewed for HSAS at the same time as their CCHS interview.”
  • Number 13,024 replaces 12,031 in the following sentence:
    “A total of 13,024 respondents were re–contacted after having been interviewed previously for CCHS.”

Suggested correction: N/A

Corrective Pseudo–code: N/A

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: October 12, 2007

To: Data Users and licensees of the Canadian Community Health Survey data, Cycles 2.1 and 3.1, Public Use Microdata File

Subject: Derived variable on work stress scale – Job strain (WSTCDJST and WSTEDJST)

Cycle(s) affected:

Cycle 2.1 (optional content selected by 12 health regions within Newfoundland and Labrador, Ontario and Saskatchewan)

Cycle 3.1 (optional content selected by all health regions in Quebec and Saskatchewan).

Product(s) affected:

Derived variable on work stress scale – Job strain (WSTCDJST and WSTEDJST)

Referred to hereafter as WSTnDJST where n = C or E.

Description of the problem(s):

The Job strain scale should reflect the ratio of the psychological demands and decision making leeway in accordance with the principle that strong demands combined with weak decision making autonomy generate more stress.

Certain variables from the denominator of the WSTnDJST derived variable are incorrectly specified in the Derived Variable (DV) Specifications document for cycles 2.1 and 3.1. The data are therefore erroneous. The ratio of strong demands and decision making leeway result is scores that are too high.

Suggested correction(s):

Public use microdata file (PUMF):
Cannot be corrected by users given the fact that only the derived variables exist on the file. User support via remote access is available upon request.

Share and Master Files:
A temporary reformatting step aiming to invert certain variables must be added to the specifications for the WSTnDJST variable. The step to invert the categories (to arrange them from 4 to 0 rather than from 0 to 4) must be applied to the following variables: WSTn401, WSTn402, WSTn403, WSTn405 and WSTn409.

A “patch file” is available on request.

Corrective Pseudo–code:
The two following temporary reformatting steps are executed and then the WSTnDJST variable is created according to the DV specifications:

Step 1: Temporary Reformatting

Modify the scale of responses for the questions WSTn_401 to WSTn_406 and WSTn_409 from 1 to 5, to 0 to 4

If WSTn_401 <= 5 then WSTn_401 = (WSTn_401 – 1)
If WSTn_402 <= 5 then WSTn_402 = (WSTn_402 – 1)
If WSTn_403 <= 5 then WSTn_403 = (WSTn_403 – 1)
If WSTn_404 <= 5 then WSTn_404 = (WSTn_404 – 1)
If WSTn_405 <= 5 then WSTn_405 = (WSTn_405 – 1)
If WSTn_406 <= 5 then WSTn_406 = (WSTn_406 – 1)
If WSTn_409 <= 5 then WSTn_409 = (WSTn_409 – 1)

Step 2 : Temporary Reformatting

Invert the scale of responses for the questions WSTn_401 to WSTn_403, WSTn_405 and WSTn_409, from 0 to 4, to 4 to 0

If WSTn_401 <= 4 then WSTn_401 = (4 – WSTn_401)
If WSTn_402 <= 4 then WSTn_402 = (4 – WSTn_402)
If WSTn_403 <= 4 then WSTn_403 = (4 – WSTn_403)
If WSTn_405 <= 4 then WSTn_405 = (4 – WSTn_405)
If WSTn_409 <= 4 then WSTn_409 = (4 – WSTn_409)

Step 3:

See WSTnDJST in the Derived Variable (DV) Specifications document.

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:

Health Statistics Division
613–951–1746
Electronic mail:CCHS–ESCC@statcan.gc.ca

Date: October 12, 2007

To:Data Users and licensees of the Canadian Community Health Survey data, Cycle 3.1, Public Use Microdata File (PUMF)

Subject: Question universes in 6 modules in the PUMF data dictionary for Cycle 3.1 are incorrect.

Cycle(s) affected: Cycle 3.1

Product(s) affected:

Data dictionary of the Cycle 3.1 PUMF in English [English Data Dictionary (Freqs).pdf] and in French [French Data Dictionary (Freqs).pdf].

Description of the problem(s):

The derived variable descriptions for the following modules:

  • Smoking (SMK)
  • Colorectal Cancer Screening (CCS)
  • Exposure to second–hand smoke (ETS)
  • Prostate Cancer Screening (PSA)
  • Smoking – Physician counseling (SPC)
  • Youth Smoking (YSM)

Suggested correction(s):

  • Smoking (SMK):
    • SMKEDYCS: Respondents who answered SMKE_202 = (1, 7 or 8) or SMKE_01A = 8 and SMKE_01B = 8
  • Colorectal Cancer Screening (CCS):
    • CCSEFOPT: All respondents
    • CCSE_180: Respondents aged 35 and over with CCSEFOPT = 1
    • CCSE_182: Respondents who answered CCSE_180 = (1, 7 or 8)
    • CCSE_83A: Respondents who answered CCSE_180 = (1, 7 or 8)
    • CCSE_83B: Respondents who answered CCSE_180 = (1, 7 or 8)
  • Exposure to second–hand smoke (ETS):
    • ETSE_10: Respondents with DHHEDHSZ > 1 or who answered (SMKE_202 = (3, 7 or 8) or (SMKE_01A = 8 and SMKE_01B = 8))
    • ETSE_G11: Respondents who answered ETSE_10 = (1, 7 or 8)
    • ETSE_20: Respondents who answered SMKE_202 = (3, 7 or 8) or (SMKE_01A = 8 and SMKE_01B = 8)
    • ETSE_20B: Respondents who answered SMKE_202 = (3, 7 or 8) or (SMKE_01A = 8 and SMKE_01B = 8)
  • Prostate Cancer Screening (PSA) :
    • PSAEFOPT: All respondents
    • PSAE_170: Males aged 35 and over with PSAEFOPT = 1
    • PSAE_172: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73A: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73B: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73C: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73G: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73D: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73E: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_73F: Respondents who answered PSAE_170 = (1, 7 or 8)
    • PSAE_174: Males aged 35 and over with PSAEFOPT = 1
    • PSAE_175: Respondents who answered PSAE_174 = (1, 7 or 8) or PSAE_170 = 8
  • Smoking – Physician counseling (SPC):
    • SPCEFOPT: All respondents
    • SPCE_10: Respondents with SPCEFOPT = 1 who answered (SMKE_202 = (1 or 2) or SMKE_06A = 1 or SMKE_09A = 1 and HCUE_1AA = (1, 7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 or SMKE_202 = (7 or 8) or SMKE_06A = (7 or 8) or SMKE_09A = (7 or 8))
    • SPCE_11: Respondents with SPCEFOPT = 1 who answered SPCE_10 = (1, 7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 or SMKE_202 = (7 or 8) or SMKE_06A = (7 or 8) or SMKE_09A = (7 or 8) or HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) or SMKE_06A = 1 or SMKE_09A = 1)
    • SPCE_12: Respondents with SPCEFOPT = 1 who answered SPCE_11 = (1, 7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 or SMKE_202 = (7 or 8) or SMKE_06A = (7 or 8) or SMKE_09A = (7 or 8) or HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) or SMKE_06A = 1 or SMKE_09A = 1)
    • SPCE_13: Respondents with SPCEFOPT = 1 who answered SPCE_11 = (1, 7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 or SMKE_202 = (7 or 8) or SMKE_06A = (7 or 8) or SMKE_09A = ( 7 or 8) or HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) or SMKE_06A = 1 or SMKE_09A = 1)
    • SPCE_14A: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14B: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14C: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14D: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14E: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14F: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_14G: Respondents with SPCEFOPT = 1 who answered SPCE_13 = (1, 7 or 8) or SPCE_12 = (7 or 8) or SPCE_11 = (7 or 8) or SPCE_10 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8 and SMKE_202 = (7 or 8) and SMKE_06A = (7 or 8) and SMKE_09A = ( 7 or 8) and HCUE_1AA = (7 or 8) and (SMKE_202 = (1 or 2) and SMKE_06A = 1 and SMKE_09A = 1)
    • SPCE_20: Respondents with SPCEFOPT = 1 and [DENEFOPT = 2 who answered (SMKE_202 = (1, 2, 7 or 8) or SMKE_06A = (1, 7 or 8) or SMKE_09A = (1, 7 or 8) or SMKE_01A = 8 or SMKE_01B = 8)] and (HCUE_02E > 0 and < 100 or HCUE_02E = (997 or 998) or HCUE_01 = 8)
    • SPCE_21: Respondents with SPCEFOPT = 1 who answered SPCE_20 = (1, 7 or 8) or (DENE_132 = (1, 97 or 98) or with DENEFOPT = 2 who answered HCUE_02E = (997 or 998) or HCUE_01 = 8) and (SMKE_202 = (1, 2, 7 or 8) or SMKE_06A = (1, 7 or 8) or SMKE_09A = (1, 7 or 8) or SMKE_01A = 8 and SMKE_01B = 8)
    • SPCE_22: Respondents with SPCEFOPT = 1 who answered SPCE_21 = (1, 7 or 8) or SPCE_20 = (7 or 8) or (DENE_132 = (97 or 98) or with DENEFOPT = 2 who answered HCUE_02E = (997 or 998) or HCUE_01 = 8) and (SMKE_202 = (1, 2, 7 or 8) or SMKE_06A = (1, 7 or 8) or SMKE_09A = (1, 7 or 8) or SMKE_01A = 8 and SMKE_01B = 8)
  • Youth Smoking (YSM)
    • YSMEG1: Respondents aged less than 20 who answered SMKE_202 = (1, 2, 7 or 8) or (SMKE_01A = 8 and SMKE_01B = 8)
    • YSME_2: Respondents aged less than 20 who answered YSME_1 = (8, 9, 10, 11, 12, 97 or 98) or SMKE_202 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8
    • YSME_3: Respondents aged less than 20 who answered YSME_1 = (1,2,3,4,5,6,7,97 or 98) or YSME_2 = (1, 7 or 8) or SMKE_202 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8
    • YSME_4: Respondents aged less than 20 who answered YSME_1 = (1,2,3,4,5,6,7,97 or 98) or YSME_2 = (1, 7 or 8) or SMKE_202 = (7 or 8) or SMKE_01A = 8 and SMKE_01B = 8
    • YSME_5: Respondents aged less than 20 who answered SMKE_202 = (1, 2, 7 or 8) or (SMKE_01A = 8 and SMKE_01B = 8)

Corrective Pseudo–code: N/A

Contact us: We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:

Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca

Date: October 12, 2007

To: Data Users and licensees of the Canadian Community Health Survey data, Cycle 3.1, Public Use Microdata File (PUMF)

Subject: Derived variable documentation contains misleading information indicating that some variables are included in the PUMF when they are not.

Cycle(s) affected: Cycle 3.1

Product(s) affected:

Cycle 3.1 PUMF derived variable documentation in English (DERIVE_E.pdf) and in French (DERIVE_F.pdf).

Description of the problem(s):

The derived variable descriptions for the following modules:

  • Smoking – Cessation Aids (SCA)
  • Smoking – Nicotine dependence (NDE)
  • Smoking – Stages of change (SCH)

indicate that the derived variables are available in the PUMF, while they are not. Since these modules have only been selected by one or two territories, the information is sensitive to respondent identity disclosure and is therefore not included in the PUMF.

Suggested correction: N/A

Corrective Pseudo–code: N/A

Contact us:

We regret any inconvenience this may have caused you or your organization and thank you in advance for your understanding.

Should you have any questions, please do not hesitate to contact us at:
Data Access and Information Services
Health Statistics Division
613–951–1746
Electronic mail: CCHS–ESCC@statcan.gc.ca