1. Comparison of EHIS source questions with national survey questions
Antti Tuomi-Nikula
National Institute for Health and Welfare (THL)
Helsinki, Finland

2. Basics
Work started in 2010: pilot comparison in EUHSID project; contract between Statistics Austria and THL, Finland
Work done at THL
Focus: EHIS wave 1 questions in 20 countries

3. Main goals
To find out:
Which EHIS questions are included in national surveys?
Are the questions identical with the original?
If they are not, to which degree do they differ?
No comparison of survey methods

4. EHIS modules included & progress
Based on the document ”Priority shortlist of indicators to be computed with the EHIS”
Personal characteristics: 6 questions - pending
European Health Status Module: 45 questions - completed
Determinants of Health: 20 questions - in the making
European Health Care Module: 24 questions - in the making

5. Timeline
Reports
Draft (11/2010): Missing questions and some examples for EHSM
Final (4/2011): Full results with details for each module + examples

6. The procedure Comparison of questions
All national questionnaires translated to English
Entered in a table
Examined in parallel with original EHIS questions
Missing/different questions spotted
Classification protocol created
Classification of questions in detail

7. Preliminary results (1)
Overview total
20 countries
Full EHIS in 13, partial in 7
95 EHIS questions, 20 countries: 1900 national questions (baseline)

8. Preliminary results (2)
Overview EHSM
45 EHIS questions, 20 countries: 900 national questions
62% totally comparable, 26% partially comparable, 12% not comparable or missing
In 12 countries all questions totally or partially comparable (in 7 countries: over 90% totally comparable)
In 7 countries: over 10% missing

9. Preliminary results (3)
Findings EHSM
Missing questions / total difference
Different recall period
Different / missing / extra specifications
Remarkably different question structure
Differences in answer options

10. Preliminary results (4)
”The Comparison Grid” (part) AT BE BG CY CZ EE FR DE GR HU LT MT NO PL RO SK SI ES CH TR
HS.1
HS.2
HS.3
HS.4 -1 -2 -3 -5 -6
-11
-19
HS.5
HS.6
HS.7
HS.8
PL.1
PL.2
PL.3

11. Discussion Questions raised
Is there any need in including Personal Characteristics module in the study?
Need to clarify introductions of EHIS questions?
More standardisation needed for wave 2?

12. Next steps
Detailed findings: Final report 4/2011 (A. Tuomi-Nikula, S. Ahonen, P. Koponen)
to be available at

13. Thank you!