has not changed by more than

has not changed by more than detects cases in which the current value for an attribute is within some limit of 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          2.0          2.3
LDL                        6.2          4.0                       5.1
Trig          3.6                                    3.6          3.0
LipidDrug     N                         Y            Y

HDL has not changed by more than .3

HDL has not changed by more than 15 percent

Trig has not changed by more than .8

Trig has not changed by more than 20 percent