Strength Loss Rate

[quagmire]

Does it vary depending on the original state (novice, intermediate, advanced) of the trainee?
Also, is there a big variation amongst people for the same level?

I am coming back from a 4 month layoff, and my OHP went down from 120 pounds to 75.
Just the bar seems heavy.

[Mark Rippetoe]

If you're not really very strong when you take a layoff, you won't be very strong when you start back.