1, gone ... than = not anymore ... ratio: both before and after comparison are "no" ... no.
For example:
Whales are no more birds than horses are birds. //A whale is no more a bird than a horse is.
//None of them are birds.
Whales are no more birds than horses are birds.
No more, no less ... than: compare the two before and after "... must mean"
For example:
You are as clever as me. //You are as clever as me.
Also note that the above two usages must have such a fixed structure to be translated into that! ! !
In other words, their other structures are other meaning.
After understanding the above usage, the meaning in brackets is obvious, which is an ellipsis sentence. The complement should be: The change we are considering is no more evidence than it is in today's western society.
This change is not obvious in contemporary western society.
The whole paragraph is translated as follows:
The concept of health has different meanings for different people and groups.
Health has different meanings for different people and groups.
With the passage of time, the meaning of health has also changed.
The meaning of these health will also change with the times. (There is no more evidence of this change in today's western society, which is not obvious in contemporary western society), when the notice of health and health promotion is being challenged and expanded in new ways.
When the definition of health and health pedagogy is challenged and extended in a new way.