139 Conversion of STOPP/START version 2 into coded algorithms - SI Table SI1.6. Measurement columns and their allowed objects, attributes, and operators. # Object Attribute Operator Value Explanation Measurement [not] exists loinc equals (=), not equals (!=) Contains a LOINC code (e.g. 11556-8). Most LOINC codes have predetermined units of measurement for results. If not, a unit attribute is included to specify the unit of measurement. value equals (=), not equals (!=), greater than (>), less than (<) Contains a number indicating the measurement’s result (e.g. 60). unit equals (=) Contains a unit of measurement (e.g. mg/(24.h)). age equals (=), not equals (!=), greater than (>), less than (<) Contains a number indicating the age of the measurement, for example for monthly repeated measurements (e.g. 1, 2). Is always followed by interval. interval equals (=) Contains one of the following characters indicating a time interval: Y (years), M (months), W (weeks). Always preceded by age. 2
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