# Tight Glycemic control may not be best for Type 2

**URL:** <https://forum.fudiabetes.org/t/tight-glycemic-control-may-not-be-best-for-type-2/4019>\
**Category:** T2 Research\
**Created:** [May 11, 2018, 1:03pm UTC](https://forum.fudiabetes.org/t/tight-glycemic-control-may-not-be-best-for-type-2/4019 "2018-05-11T13:03:43Z")\
**Posts on this page:** 1\
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**Author:** ![docslotnick](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/docslotnick/32/75_2.png) [@docslotnick](https://forum.fudiabetes.org/u/docslotnick)\
**Post date:** [May 11, 2018, 8:05pm UTC](https://forum.fudiabetes.org/t/tight-glycemic-control-may-not-be-best-for-type-2/4019/13 "2018-05-11T20:05:42Z")

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You can find a description and link in this thread

> [@XDrip+ Now Displays GVI and PGS](https://forum.fudiabetes.org/t/xdrip-now-displays-gvi-and-pgs/3561):
>
> With the latest nightly release of xDrip+, the app now calculates GVI (Glycemic Variability Index) and PGS (Patient Glycemic Status). Basically, the GVI measures the length of your CGM track over a specific period of time. The longer the length of the track, the higher the glycemic variance. PGS basically measures your GVI+ mean glucose+ time in range and presents it in a single number that is closely related to your glycemic state, or control. These numbers are soon to become the measure of …

PGI is basically a string laid over your CGM trace and comparing its length to a straight line and GVI is glucose variability over a time period.

It’s definitely worth a read ( the link in the thread)

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