Validating the Dutch SF-6D and EQ-5D Using Pairwise Comparisons and Best-Worst Scaling > SF-6D
Single Wave Study
General Information
Title
SF-6D
Project Number
59.1
Abstract
In April 2011, the LISS panel completed the SF-6D questionnaire. The questionnaire serves to validate the Dutch SF-6D (classification for describing health) and to understand the valuation of health in the Netherlands.
Respondents were first presented a number of example questions, so that they could practice with the setup and layout of the multiple choice questions. This was followed by the 14 actual multiple choice questions (pairwise comparisons), consisting of part A and part B. For each decision-making situation, respondents were asked to imagine they only had a few years left to live. For every question three options were given, indicating in what health condition the respondents could spend the last years of their life. Respondents then indicated which option they preferred.
Part A of every question offered a choice between option A and B; these had an equal remaining life expectancy, but under different health conditions: a better, equal or worse score on the 6 health aspects of “bodily functioning”, “physical and/or emotional constraints”, “social activities”, “pain”, “depressed and glum”, and “energetic”. In part B of each question, exactly the same options were shown as in part A, but the choice offered was between option B, to live longer in worse health, or C, to live shorter in perfect health.
The remaining life expectancies and health conditions differed per question, as well as per version (note that option C always meant a perfect health condition, but a shorter life expectancy that options A and B). Respondents were assigned to one of the eight versions. The health aspects were displayed on screen in random order (this order was maintained throughout the rest of the questionnaire).
Color schemes were used for the scores on health aspects. The colors were dependent on the group to which the respondent belonged:
Group 1: the traffic light colors of red-orange-green, unless colorblind and opted for the purple colors.
Group 2: the purple colors (from light to dark), unless colorblind and opted for the traffic light colors.
With the traffic light colors, red represented poor, orange represented average, and green represented good health. With the purple colors, the lighter variants represented poor health and the darker variants good health. This was done to see to what extent the colors contribute to the comparatively large weight of the poor health conditions.
The variables for the version, the question, the scores on the 6 health aspects and the remaining life expectancies were captured.
Respondents were first presented a number of example questions, so that they could practice with the setup and layout of the multiple choice questions. This was followed by the 14 actual multiple choice questions (pairwise comparisons), consisting of part A and part B. For each decision-making situation, respondents were asked to imagine they only had a few years left to live. For every question three options were given, indicating in what health condition the respondents could spend the last years of their life. Respondents then indicated which option they preferred.
Part A of every question offered a choice between option A and B; these had an equal remaining life expectancy, but under different health conditions: a better, equal or worse score on the 6 health aspects of “bodily functioning”, “physical and/or emotional constraints”, “social activities”, “pain”, “depressed and glum”, and “energetic”. In part B of each question, exactly the same options were shown as in part A, but the choice offered was between option B, to live longer in worse health, or C, to live shorter in perfect health.
The remaining life expectancies and health conditions differed per question, as well as per version (note that option C always meant a perfect health condition, but a shorter life expectancy that options A and B). Respondents were assigned to one of the eight versions. The health aspects were displayed on screen in random order (this order was maintained throughout the rest of the questionnaire).
Color schemes were used for the scores on health aspects. The colors were dependent on the group to which the respondent belonged:
Group 1: the traffic light colors of red-orange-green, unless colorblind and opted for the purple colors.
Group 2: the purple colors (from light to dark), unless colorblind and opted for the traffic light colors.
With the traffic light colors, red represented poor, orange represented average, and green represented good health. With the purple colors, the lighter variants represented poor health and the darker variants good health. This was done to see to what extent the colors contribute to the comparatively large weight of the poor health conditions.
The variables for the version, the question, the scores on the 6 health aspects and the remaining life expectancies were captured.
Longitudinal Type
Single Wave Study
Begin date
04-04-2011
End date
27-04-2011
Topics
Researcher
Jonker, M., Donkers, B., De Bekker-Grob, E.
Publisher
CentERdata
Copyright
© 2012 CentERdata
Funding Organization
CentERdata/MESS Project
DOI
https://doi.org/10.17026/dans-zmb-2ec5
Datasets and documentation
View Documentation
Codebook in English
Codebook in Dutch
Annex 1
Bijlage 1
Annex 2
Bijlage 2
picture - {vg}
afbeelding - {vg}
picture - en018
afbeelding - en018
picture - en019
afbeelding - en019
picture - AB
afbeelding - AB
picture - BC
afbeelding - BC
picture red-orange-green
picture purple
Data Files
English SPSS file
English STATA file
Variables
| Variable name | Variable Label | Variable Type |
|---|---|---|
| nomem_encr | Number of the respondent encrypted | preloaded |
| en11a_m | Year and month of administration | constructed |
| en11a001 | captured variable: age | preloaded |
| en11a002 | version of the questionnaire | constructed |
| en11a003 | colors belonging to the scores on health aspects | constructed |
| en11a004 | Sequence of the health aspects: which health aspect was offered first | constructed |
| en11a005 | Sequence of the health aspects: which health aspect was offered second | constructed |
| en11a006 | Sequence of the health aspects: which health aspect was offered third | constructed |
| en11a007 | Sequence of the health aspects: which health aspect was offered fourth | constructed |
| en11a008 | Sequence of the health aspects: which health aspect was offered fifth | constructed |
| en11a009 | Sequence of the health aspects: which health aspect was offered sixth | constructed |
| en11a010 | To what extent does your bodily functioning limit you in daily activities that require moderate effort, such as vacuum cleaning or cycling? | directly measured |
| en11a011 | Do physical and/or emotional constraints cause you to accomplish less in daily activities than you wish? For example, limitations to your mobility or feelings of depression or anxiety? | directly measured |
| en11a012 | How often do physical and/or emotional problems limit your social activities, such as visiting friends or family? | directly measured |
| en11a013 | To what extent does pain limit you in daily activities? | directly measured |
| en11a014 | How often do you feel depressed and glum? | directly measured |
| en11a015 | How often do you feel energetic? | directly measured |
| en11a016 | Do you have any form of color blindness? | directly measured |
| en11a017 | Will you please indicate below which color scheme you prefer to see in this questionnaire? | directly measured |
| en11a018 | Which option do you prefer, A or B? | directly measured |
| en11a019 | Which option do you prefer, B or C? | directly measured |
| en11a020 | Which option do you prefer, A or B? | directly measured |
| en11a021 | Which option do you prefer, B or C? | directly measured |
| en11a022 | Which option do you prefer, A or B? | directly measured |
| en11a023 | Which option do you prefer, B or C? | directly measured |
| en11a024 | Which option do you prefer, A or B? | directly measured |
| en11a025 | Which option do you prefer, B or C? | directly measured |
| en11a026 | Which option do you prefer, A or B? | directly measured |
| en11a027 | Which option do you prefer, B or C? | directly measured |
| en11a028 | Which option do you prefer, A or B? | directly measured |
| en11a029 | Which option do you prefer, B or C? | directly measured |
| en11a030 | Which option do you prefer, A or B? | directly measured |
| en11a031 | Which option do you prefer, B or C? | directly measured |
| en11a032 | Which option do you prefer, A or B? | directly measured |
| en11a033 | Which option do you prefer, B or C? | directly measured |
| en11a034 | Which option do you prefer, A or B? | directly measured |
| en11a035 | Which option do you prefer, B or C? | directly measured |
| en11a036 | Which option do you prefer, A or B? | directly measured |
| en11a037 | Which option do you prefer, B or C? | directly measured |
| en11a038 | Which option do you prefer, A or B? | directly measured |
| en11a039 | Which option do you prefer, B or C? | directly measured |
| en11a040 | Which option do you prefer, A or B? | directly measured |
| en11a041 | Which option do you prefer, B or C? | directly measured |
| en11a042 | Which option do you prefer, A or B? | directly measured |
| en11a043 | Which option do you prefer, B or C? | directly measured |
| en11a044 | Which option do you prefer, A or B? | directly measured |
| en11a045 | Which option do you prefer, B or C? | directly measured |
| en11a046 | Which option do you prefer, A or B? | directly measured |
| en11a047 | Which option do you prefer, B or C? | directly measured |
| en11a048 | Was it difficult to answer the questions? | directly measured |
| en11a049 | Were the questions sufficiently clear? | directly measured |
| en11a050 | Did the questionnaire get you thinking about things? | directly measured |
| en11a051 | Was it an interesting subject? | directly measured |
| en11a052 | Did you enjoy answering the questions? | directly measured |
| en11a053 | Starting date questionnaire | constructed |
| en11a054 | Starting time questionnaire | constructed |
| en11a055 | End date questionnaire | constructed |
| en11a056 | End time questionnaire | constructed |
| en11a057 | Duration in seconds | derived |
Response Information
Response Overview
Selected number of household members: 3580 (100%)Non-response: 1101 (30.8%)
Response: 2479 (69.2%)
Complete: 2443 (68.2%)
Incomplete: 36 (1.0%)
Collection Events
Period
04-04-2011 to 27-04-2011
Sample
Random selection of 3580 panel members with the age of 16 years and older.
Collection Mode
internet survey
Fieldwork Note
a reminder was sent twice to non-respondents
Publications
Are health state valuations from the general public biased? A test of health state reference dependency using self‐assessed health and an efficient discrete choice experiment Health Economics (2017), 26(12), 1534-1547; Jonker, M.F.,
et al.
Advocating a Paradigm Shift in Health-State Valuations: The Estimation of Time-Preference Corrected QALY Tariffs Value in Health, 21(8), 993-1001; Jonker, M.F.,
et al.