How about adding some Lifespan Timers to the Results Screen?
There's already 'time spent dead' in the results after a match; how about adding some 'life span' timers for comparison? Just 3 so nothing drastic; shortest lifespan, average lifespan, longest lifespan. These should be obvious in function, and could be used to cross-reference the K/D/As to see impact in teamfights more specifically.