In addition, [[Christianity]] is growing rapidly in communist [[China]] (See: [[Growth of Christianity in China]]).
In addition, [[Christianity]] is growing rapidly in communist [[China]] (See: [[Growth of Christianity in China]]).
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== Atheism and low retention rates ==
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''See also:'' [[Atheism has a lower retention rate compared to other worldviews]]
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In 2012, a [[Georgetown University]] study was published indicating that in the United States only about 30 percent of those who grow up in an [[Atheism|atheist]] household remain atheists as adults.<ref>[http://www.christianpost.com/news/study-atheists-have-lowest-retention-rate-compared-to-religious-groups-78029/ Study: Atheists Have Lowest 'Retention Rate' Compared to Religious Groups]</ref>
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As noted above, many individuals are abandoning atheism in communist countries or former communist areas.
== Fertility rates of religious vs. irreligious ==
== Fertility rates of religious vs. irreligious ==