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2020
DOI: 10.1007/s11136-020-02533-2
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Does the single-item self-rated health measure the same thing across different wordings? Construct validity study

Abstract: Purpose The self-rated health (SRH) item is frequently used in health surveys but variations of its form (wording, response options) may hinder comparisons between versions over time or across surveys. The objectives were to determine (a) whether three SRH forms are equivalent, (b) the form with the best construct validity and (c) the best coding scheme to maximize equivalence across forms. Methods We used data from 58,023 respondents of the Swiss Health Survey. Three SRH forms were used. Response options vari… Show more

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Cited by 39 publications
(29 citation statements)
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“…More specifically, we assessed SRH using the first item of the Short Form Survey (SF12v2), a health-related questionnaire validated in various languages [ 34 ]. Participants rated their health on a 5-point scale by answering the question “Overall, do you think your health is (1) excellent, (2) very good, (3) good, (4) fair or (5) poor?” We then dichotomized this variable to emphasize positive options, as this dichotomization has recently been found to better reflect one’s health status than coding schemes stressing negative ratings [ 35 ]. The modalities (3) good, (4) fair and (5) poor were hence used as reference and were attributed the value 0.…”
Section: Methodsmentioning
confidence: 99%
“…More specifically, we assessed SRH using the first item of the Short Form Survey (SF12v2), a health-related questionnaire validated in various languages [ 34 ]. Participants rated their health on a 5-point scale by answering the question “Overall, do you think your health is (1) excellent, (2) very good, (3) good, (4) fair or (5) poor?” We then dichotomized this variable to emphasize positive options, as this dichotomization has recently been found to better reflect one’s health status than coding schemes stressing negative ratings [ 35 ]. The modalities (3) good, (4) fair and (5) poor were hence used as reference and were attributed the value 0.…”
Section: Methodsmentioning
confidence: 99%
“…Self-rated health was assessed using the single item “How would you rate your present state of health?” which was rated on a 5-point scale from very good to very bad , that is, higher scores indicate worse self-rated health. This single-item assessment is frequently used to measure self-rated health and provides a valid assessment of individual self-perceived health status (Cullati et al, 2020).…”
Section: Methodsmentioning
confidence: 99%
“…General SRH was measured using the following first question of the Short-form health survey (SF-36): “In general, would you say your health is: excellent, very good, good, poor, and very poor?” [ 31 ]. Participants were divided into two groups: good SRH, by collapsing the excellent, very good, and good responses and poor SRH, by collapsing the poor and very poor responses, as applied in previous studies [ 32 , 33 ]. Such transformation is simple, improves statistical analyses, allows for keeping respondents’ answers in their original response options (instead of dichotomizing response options), and improves the interpretation of mean SRH values in populations groups [ 32 ].…”
Section: Methodsmentioning
confidence: 99%