AV ratio

ratio, AV 

The ratio of the diameter of the ret-inal arteries to that of the retinal veins. It is usually around two-thirds. Deviations from this value may indicate a vascular disease (e.g. hypertension).
References in periodicals archive ?
The tax base is mature, with an incremental AV-to-base year AV ratio of 960%.
The tax base is somewhat mature, with a fiscal 2012 IV to base year AV ratio of 208%.
4 million with a high incremental value (IV) to base year AV ratio in fiscal 2011 at over 5x.
The largely residential (57%) and commercial (22%) tax base has a low incremental value (IV) to base year AV ratio in fiscal 2012 at 2.
7 billion and a solid incremental value (IV) to base year AV ratio in 2012 at over 3.
67 billion with a very high incremental value (IV) to base year AV ratio in fiscal 2011 at over 9.
The tax base is mature, with an incremental AV to base year AV ratio of 960%.
Although there have been some tax base declines, the incremental value (IV) to base year AV ratio is still solid at 2.
7 billion with a solid incremental value (IV) to base year AV ratio in fiscal 2011 at 2.
5% in total over the past three years, the fully-developed tax base remains sizable at an estimated $787 million with a very high incremental value (IV) to base year AV ratio in fiscal 2011 at over 45x.
Sizable Project Area Tax Base: Despite recent modest assessed valuation (AV) declines in fiscal 2010 and 2011, the tax base remains a sizable $655 million with a good 134% incremental value (IV) to base year AV ratio.
9 million with a good 174% incremental value (IV) to base year AV ratio.