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

2. 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

3. 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

4. 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