Table 3.
Data in tertiles over three-year period.*
| Year of OP LVAD | Number of deaths at 1 year postoperative/Total | Percent of death |
|---|---|---|
| 2004-2005 | 3/6 | 50% |
| 2006 | 4/12 | 33% |
| 2007 | 1/6 | 17% |
*The total study was divided into three tertiles (2004-2005, 2006, and 2007). There is a trend of decreased death from 50% to 17% over a one-year period, reflecting progressive improvement in the perioperative experience of OP LVAD insertion with reduced postoperative mortality rate. The trend is not statistically significant (p = 0.08 Fisher' exact test) due to the limited sample size.