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