has decreased by more than

has decreased by more than gives a true or false value, depending on the rate at which the test value has decreased from the previously available value. Absolute units are implied, unless “percent” is specifically stated.

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          1.9
LDL                        6.2          5.0                       3.9
Trig          3.6                                    3.6
LipidDrug     N                         Y            Y

HDL has decreased by more than .5

HDL has decreased by more than 20 percent

DL has decreased by more than 1.0

LDL has decreased by more than 20 percent