Summary

Performs a calculation against a baseline value. It expects to be attached to an item containing a similar value. It looks up the baseline value according to parameters specified in the configuration. It retrieves the baseline form, grabs the value of interest, and compares it to that same value in the current form.

Formal Expression

Variables:

BASELINE_STUDY_EVENT = the name of the study event containing the baseline value
ITEM_NAME = the name of the item containing the value

var BASELINE_STUDY_EVENT = 'Visit 1';
var ITEM_NAME = 'LESSUM';
var ret = null;
var BASELINE_STUDY_EVENT = 'Visit 1';
if (formJson.form.studyEventName !== BASELINE_STUDY_EVENT) {
    var baseForms = findFormData(BASELINE_STUDY_EVENT, formJson.form.name);
    if (baseForms !== null && baseForms.length === 1) {
        var baselineSum = findFirstItemValueByName(baseForms[0], ITEM_NAME);
        var thisFormSum = findFirstItemValueByName(formJson, ITEM_NAME);
        if (!isNaN(baselineSum) && !isNaN(thisFormSum)) {
            ret = Math.round(((Number(thisFormSum) * 100) / Number(baselineSum)) - 100) / 100;
        }
    }
}
return ret;

Documentation

RECIST Change

Summary

Formal Expression