Microdata User Guide Maternity Experiences Survey 2006 Maternity Experiences Survey, 2006 – User Guide Table of Contents 1.0 Introduction ............................................................................................................................... 5 2.0 Background ............................................................................................................................... 7 3.0 Objectives ............................................................................................................................... 9 4.0 Concepts and Definitions............................................................................................................ 11 5.0 Survey Methodology.................................................................................................................... 13 5.1 Target Population.............................................................................................................. 13 5.2 Sampling Frame................................................................................................................ 13 5.2.1 Population Undercoverage and Overcoverage.................................................... 13 5.3 Sample Design.................................................................................................................. 14 5.3.1 Stratification ......................................................................................................... 14 5.3.2 Allocation.............................................................................................................. 14 5.4 Sample Size ...................................................................................................................... 14 6.0 Data Collection ............................................................................................................................. 17 6.1 Non-response.................................................................................................................... 18 7.0 Data Processing ........................................................................................................................... 19 7.1 Data Capture..................................................................................................................... 19 7.2 Editing ............................................................................................................................. 19 7.3 Coding of Open-ended Questions .................................................................................... 20 7.4 Imputation ......................................................................................................................... 20 7.5 Creation of Derived Variables ........................................................................................... 20 7.6 Weighting .......................................................................................................................... 22 8.0 Data Quality ............................................................................................................................. 23 8.1 Response Rates................................................................................................................ 23 8.2 Survey Errors .................................................................................................................... 24 8.2.1 The Frame............................................................................................................ 24 8.2.2 Data Collection..................................................................................................... 24 8.2.3 Data Processing................................................................................................... 26 8.2.4 Non-response....................................................................................................... 28 8.2.5 Measurement of Sampling Error.......................................................................... 29 9.0 Guidelines for Tabulation, Analysis and Release..................................................................... 31 9.1 Rounding Guidelines......................................................................................................... 31 9.2 Sample Weighting Guidelines for Tabulation.................................................................... 31 9.3 Definitions of Types of Estimates: Categorical and Quantitative...................................... 32 9.3.1 Categorical Estimates .......................................................................................... 32 9.3.2 Quantitative Estimates ......................................................................................... 32 9.3.3 Tabulation of Categorical Estimates .................................................................... 33 9.3.4 Tabulation of Quantitative Estimates ................................................................... 33 9.4 Guidelines for Statistical Analysis ..................................................................................... 33 9.5 Coefficient of Variation Release Guidelines ..................................................................... 34 9.6 Release Cut-off’s for the Maternity Experiences Survey .................................................. 36 Special Surveys Division 3 Maternity Experiences Survey, 2006 – User Guide 10.0 Approximate Sampling Variability Tables ................................................................................. 37 10.1 How to Use the Coefficient of Variation Tables for Categorical Estimates....................... 38 10.1.1 Examples of Using the Coefficient of Variation Tables for Categorical Estimates ............................................................................................................. 39 10.2 How to Use the Coefficient of Variation Tables to Obtain Confidence Limits................... 42 10.2.1 Example of Using the Coefficient of Variation Tables to Obtain Confidence Limits.................................................................................................................... 43 10.3 How to Use the Coefficient of Variation Tables to Do a T-test ......................................... 44 10.3.1 Example of Using the Coefficient of Variation Tables to Do a T-test................... 44 10.4 Coefficients of Variation for Quantitative Estimates.......................................................... 45 10.5 Coefficient of Variation Tables .......................................................................................... 45 11.0 Weighting ............................................................................................................................. 47 12.0 Questionnaire ............................................................................................................................. 51 13.0 Record Layout with Univariate Frequencies............................................................................. 53 4 Special Surveys Division Maternity Experiences Survey, 2006 – User Guide 1.0 Introduction The Maternity Experiences Survey (MES) was conducted by Statistics Canada in the fall of 2006 with the cooperation and support of the Public Health Agency of Canada. This manual has been produced to facilitate the manipulation of the microdata file of the survey results. Any question about the data set or its use should be directed to: Statistics Canada Client Services Special Surveys Division Telephone: 613-951-3321 or call toll-free 1-800-461-9050 Fax: 613-951-4527 E-mail: [email protected] Public Health Agency of Canada Maternal and Infant Health Section Health Surveillance and Epidemiology Division Jeanne Mance Building, Tenth Floor, 200 Eglantine Driveway, AL 1910D, Ottawa, Ontario, K1A 0K9 Telephone: 613-941-2395 Fax: 613-941-9927 E-mail: [email protected] Special Surveys Division 5 Maternity Experiences Survey, 2006 – User Guide 2.0 Background The Maternity Experiences Survey (MES) is an initiative of the Canadian Perinatal Surveillance System (CPSS), which is managed by the Maternal and Infant Health Section of the Public Health Agency of Canada. Following its inception, the CPSS identified 52 perinatal health indicators that should be monitored in a comprehensive national perinatal surveillance system. However, existing national data sources such as vital statistics, hospitalization data and current population health surveys only allowed the CPSS to report on 27 of these indicators. In 1999 the CPSS established a multidisciplinary working group, the Maternity Experiences Study Group, to design a new survey that would provide the missing information. The Study Group assumed the lead role in determining the survey's content and questionnaire design and worked with Statistics Canada on implementation of the first national maternity survey. The initial work on the development of the survey involving Statistics Canada began in 1999 and resulted in a pilot test carried out in November 2002. The key recommendations for the main survey called for a reduction of content and the use of computer-assisted telephone interviewing application as the collection method. A second pilot of the modified version of the survey was recommended. The main survey could not take place as originally planned, so consequently the second pilot test was delayed. In the meantime, it was decided to use a different sample frame than initially planned that is the 2006 Census of Population instead of birth registries. The second pilot test took place in the fall