This gives a true value if the test value has not decreased from the previously available value, that is, if the test value is the same or has increased.
For example, given the following case fragment:
01 Jun 03 20 Jun 03 30 Jun 03 15 Oct 03 02 Nov 03 HDL 2.0 2.1 2.2 2.5 2.5 LDL 6.2 5.0 6.2 Trig 3.6 3.6 LipidDrug N Y Y
the following conditions are true:
HDL has not decreased
LDL has not decreased
Trig has not decreased
See also: has not increased