VAP rates range from 1.2 to 8.5 per 1,000 ventilator days and are reliant on the definition used for diagnosis [6]. Risk for VAP is greatest during the first 5 days of mechanical ventilation (3 %) with the mean duration between intubation and development of VAP being 3.3 days [1], [7]. This risk declines to 2 %/day between days 5 to 10 of ventilation, and 1 %/day thereafter [1], [8].
from wikipedia the free encyclopedia jump to navigation search in baseball a walk off home run is a home run which ends the game it must be a home run that gives the home team the lead in the bottom of the 9th inning or the bottom of any extra inning it is called a walk off home run because the teams walk off the field immediately afterward sportscasters also use the term walk off double or other such terms if such a hit drives in the winning run to end the game
A walk does not count toward a player's batting average. Walks do, however, bring up a player's on-base percentage (OBP). If a player had 5 at-bats and walked all five times, he would still have no batting average for that particular game, but his on-base percentage would be 1.000.