Agenda item 5.2 Methodology ECHIM meeting - March 2010 Eurostat actions related to health indicators Agenda item 5.2 Methodology Technical Group HIS – March 2011

Technical Group HIS – March 2011 ECHIM meeting - March 2010 Eurostat actions related to health indicators EHIS wave I Under a GA  Fieldwork not compulsory  Not all tools developed to ensure fully harmonisation Focus on common questionnaire, conceptual guidelines Common translation protocol EHIS wave II Under an IM (mandatory versus flexibility) ex. year of the survey / sampling frame Methodological aspects under NSI’s responsibility (sampling design, fieldwork aspect)  To keep in mind: methodological differences between survey can have an impact on estimates Technical Group HIS – March 2011

What methodological differences have an impact on the estimates ECHIM meeting - March 2010 Eurostat actions related to health indicators What methodological differences have an impact on the estimates Mode of data collection (CAPI, PAPI, CATI, internet based, mixed mode) Use or not incentives  bias response pattern Sampling design  sampling selection (interview individual vs whole HH) Seasonality  data collection spread all over the year Weighting procedures / imputation methods Use of proxy respondents Technical Group HIS – March 2011

Technical Group HIS – March 2011 ECHIM meeting - March 2010 Eurostat actions related to health indicators What methodological differences have an impact on the estimates Practice very diverse Recommendations to be developed (not compulsory) to enhance cross-country comparability Input documents EHIS guidelines on sampling issues Calculations of minimal effective sample sizes (final) National quality reports Sampling error Information to compute NR Characteristics of imputation procedures (imputation, modelling (calibration) …) Technical Group HIS – March 2011