Word or phrase used to provide a short textual name/description for a structure such as a graphic or figure. The short <alt-text> can be used for special accessibility display or presentation on graphic-limited websites or devices, as an alternative to providing the full graphic. (For example, <alt-text> may be used to display a few words “behind” a figure or graphic.)
This element is not to be used as a replacement for <caption>, which is a visual element displayed as part of a figure, table, etc. The <alt-text> is not a visual element, unless the figure, caption, or other major element is not available or cannot be processed by the person or device-type being addressed. The similarly non-visual element <long-desc> is meant for an extended description of the figure, table, etc.
<!ELEMENT alt-text (#PCDATA) >
Text, numbers, or special characters
<chem-struct>, <chem-struct-wrap>, <disp-formula>, <disp-formula-group>, <fig>, <graphic>, <inline-graphic>, <inline-supplementary-material>, <media>, <preformat>, <supplementary-material>, <table-wrap>
... <sec sec-type="results"> <title>Results</title> <p>We identified 703 abstracts, of which 687 were not relevant ... Details of randomisation procedures, treatment schedules, and numbers of patients followed up are given on the <italic>BMJ</italic> website.</p> <fig id="F1"> <caption> <title>Deaths among patients receiving day hospital care or alternative services.</title> <p>Odds ratios of death by end of follow up were calculated by fixed effects model. Heterogeneity between trials is presented as χ<sup>2</sup></p> </caption> <alt-text>Deaths in hospitals or with alternative services</alt-text> <graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fors2662.f1" > <object-id>456472</object-id> </graphic> </fig> ... </sec> ...