What is an IVC filter? The inferior vena cava (IVC) is a large vein in the middle of the abdomen. The IVC returns blood from your lower body to your heart. IVC filters are âbasketsâ that are made of many wires (see picture). The filter can be inserted into the IVC through a small hole in a vein in the neck or the groin.
1. Crude Divorce Rate. This number refers to the number of divorces per 1,000 people in a population. The crude annual divorce rate is currently around 3.6 divorces for every 1,000 people in the US, regardless of age. The age-adjusted crude divorce rate is currently thirteen divorces for every 1,000 people age fifteen and older.
The assumption has been (by those who have not studied it carefully) is that the 50 percent number came from someone noticing that, in the U.S., we have about 2.4 million marriages a year and 1.2 million divorces a year. Hence, 50 percent of married couples divorce, says Scott M. Stanley of the University of Denver. No serious demographer ever looked at the approximately 2.4 million marriages a year and the 1.2 million divorces a year to arrive at the 50 percent number.