If your search term consists of two or more words (e.g., "blood pressure"), OVID assumes a relationship between those words and the search will return records where the words occur next (or, adjacent) to one another.
Advanced searchers may use command line syntax, the "Adjacency Operator", to instruct OVID to search for two or more words within a specified number of words of each other in either direction.
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Syntax:
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Action:
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Search Statement Examples:
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ADJ
NOTE: case-sensitive (must be entered in upper case letters).
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Proximity -- searches words as a phrase
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blood ADJ pressure
(same as: blood pressure)
Not necessary to use this syntax (ADJ) since OVID assumes this relationship if terms are separated by a space.
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ADJ[n]
n = any number from 1 through 99, immediately following ADJ without a space (e.g., ADJ7 or ADJ3).
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Proximity -- finds the words within a specified number of words from each other.
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teenage ADJ5 pregnancy
or
fullterm ADJ6 pregnancy
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A search for teenage ADJ5 pregnancy will retrieve records where the word pregnancy occurs within 5 words of the word teenage.
The order of the words doesn't count, as seen in the examples below:
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