There is huge variability in how deaths are reported for newborns.
“Many countries, however, including certain European states (e.g. France) and Japan, only count as live births cases where an infant breathes at birth, which makes their reported IMR numbers somewhat lower and increases their rates of perinatal mortality.[111] In the Czech Republic and Bulgaria, for instance, requirements for live birth are even higher.”
Read the “Methods of estimation” section where the standardization process is described. This would be a lot simpler is you could simply provide a reference to support the claim that the life expectancy at birth metric in the USA is calculated differently to that in other countries. Your claim seems to based on differences in calculation a different metric, infant mortality rate.
There is huge variability in how deaths are reported for newborns.
“Many countries, however, including certain European states (e.g. France) and Japan, only count as live births cases where an infant breathes at birth, which makes their reported IMR numbers somewhat lower and increases their rates of perinatal mortality.[111] In the Czech Republic and Bulgaria, for instance, requirements for live birth are even higher.”