how long after an event for things to die down

[NorthernRaider]

Two years is my best bet taking into account stocks and supplies of everything from bleach, soap, detegents will take a while to use up, then medicines apart from insulin will store for at least six months. Then when we pass through one dark winter without power, gas or running water and refrigerated food I expect to see a major die off start properly as malnourished people succumb to a combination of stress and illness.
The young, the elderly, those reliant on constant medical intervention, city dwellers, the emotionally weak,those incapable of sudden adjustment to their lives, druggies, alcs and many disabled will go in the first year, but the big die off will be in year two , thats what I'm planning on anyway.