Cold temps cause more premature deaths than heat, international study shows

This is an interesting result. I'm kind of curious whether these are raw numbers, or whether they have been weighted. For example, the death rate is xxxxx ppl/day on extremely cold days, and YYYY ppl/day on monderately cold days. anyone know? 

“What we’re basically seeing in this study is that moderate days of cold or heat are producing more deaths than days of extremes,” said Eric Lavigne, an adjunct professor at the University of Ottawa and one of the authors of the paper.

”So when we’re seeing these very extreme temperatures — let’s say in some cities in Canada it could be under -30 C, but the rest of the winter it could be between -10 C and -30 C — well, this range of temperatures ... is creating more mortality cases than the extreme.”