5 research outputs found
Estimates of item parameters.
<p>*: optional items.</p><p>**: p value from χ<sup>2</sup> test.</p
Test information functions for the VFQ25 and the VFQ-J11.
<p>Both functions reached their maxima at about the same value of the latent trait (a theta of approximately −0.8). For values of theta between approximately −2.0 and +0.8, the test information for the VFQ-J11 was greater than 9, which indicates that in that range (−2.0 to +0.8) the test's reliability is equivalent to or greater than a Cronbach's alpha of 0.9.</p
Candidate items, and the 11 items chosen (*) for the short version of the VFQ (the VFQ-J11).
a<p>See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0073084#pone-0073084-t001" target="_blank">Table 1</a> for item numbers.</p><p>VFQ: The Visual Function Questionnaire originally developed by the National Eye Institute.</p><p>VFQ-J11: The short-form VFQ 11-item Japanese version.</p
Demographic and clinical characteristics of the participants in the Hisayama study and in the JDOPPS.
<p>Demographic and clinical characteristics of the participants in the Hisayama study and in the JDOPPS.</p
Micronutrient intake stratified by dietary pattern.
<p>Estimated micronutrient intake stratified by dietary pattern. Dotted lines show dietary standards according to Japan’s clinical guidelines (Dietary recommendations for chronic kidney disease, 2007, Japanese Society of Nephrology).
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