net change in

net change in calculates the difference between the earliest and the latest available values. 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          2.2          1.7
LDL                        4.5          4.7                       3.1
Trig          3.6                                    3.6
LipidDrug     N                         Y            /

net change in HDL is -.3

net change in Trig < .1

net change in LDL = -1.4