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> Tldr: If the rural population is decreasing, then your denominator is smaller and estimates of disease proportion would increase over time. This wouldn't hap
by wutbrodo 7y ago
> Tldr: If the rural population is decreasing, then your denominator is smaller and estimates of disease proportion would increase over time.
This wouldn't happen from the denominator decreasing per se, but from the emigrants being skewed healthy. Which is pretty plausible, given that you'd expect emigrants to skew eg younger.
- derefr 7y agoYou would expect emigrants to be people who are productive enough to afford the increased costs-of-living of a city, which usually (but not always) implies health—at least insofar as severe unhealthy usually restricts productivity.