We applied the SMRs to examine whether foreign
nationals in Chiang Mai City have a higher mortality
than one would expect in their home countries.
Surprisingly, we found that no matter what the choice
of reference populations, the results yielded very low
SMRs. All of the calculated SMRs are less than
1, indicating that the mortality risk among foreign
nationals visiting Chiang Mai City did not exceed
mortality risk as compared with the risk in their home
countries. In other words, there was no evidence of any
increased risk of death from residing in or traveling to
Chiang Mai City.