change in body weight to body weight ratio change in body weight to final body weight ratio 2014-03-10T13:51:09Z A calculated measurement in which the difference in the weight of the body of an organism between two time points or two conditions is divided by the total weight of the body of the organism at the second time point or under the second condition, and presented as a ratio, fraction, quotient or percentage. CMO:0002217 JSmith clinical_measurement_ontology ratio of change in body weight to final body weight