- Joined
- Aug 23, 1999
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- 36,337
Yes. That was pretty annoying.True.
What bad timing with that tour group thing for you!
ETA- this conversation is making me want to design an experiment that would get a clearer picture. Three hours of the day, weekly at the same day/ride.
It could be interesting to count
Sorry about the lesson in the rest of this post....
My background is Infection Prevention. When doing Surveillance for infections, the number of infections of each type is important, but doesn't tell you anything without knowing how many patients are at risk of getting that infection.
For example:
Catheter Related Urinary Tract Infections - need to know # patients who have a urinary catheter
Central Line Related Bloodstream Infections - need to know # patients with central lines
Ventilator Associated Pneumonia - need to # patients on a ventilator
In order to get an infection rate, we need to count the line days for each type of device (1 line day = 1 patient who has the device). Line days are counted daily at the same time each day and added up to get the line days per month. Usually midnight because that's when the census is counted. (That was the pits to get accurate data before we could get the Medical record to pull the data for us).
If line days were counted at random times of day, a random day or just weekly, there would be no way to know if the count was an outlier - either high or low.
The infection rate is determined using the number of infections and the number of line day. The line day count being accurate makes a big difference in figuring the rate of that infection