Fact Check: Did study show sperm count has dropped by 62% worldwide?

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Fact Check: Did study show sperm count has dropped by 62% worldwide?
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A Reddit post sharing an article in The Greek Reporter titled 'Sperm Counts Drop by 62% Worldwide' has gone viral.

. The authors claimed that the original 2017 study"relied on racist and colonial hierarchies and assumptions because it categorized data as"Western" sperm counts or"Other" sperm counts."

That criticism has arguably been mitigated by the widening geographic scope of the follow-up analysis, but without further analysis and feedback from the scientific community it is hard to gauge what impact these improvements had on the accuracy of the work.combines and compares the results of multiple scientific studiesWhile this type of study in medicine may provide a consolidated and quantitative review of a large and often complex body of literature, it also has its drawbacks.

For example,"a failure to identify the majority of existing studies can lead to erroneous conclusions," author A. B. Haidich warned in a December 2010 paper assessing the pros and cons of this approach. Although that in itself does not negate the outcome of this particular study, it is another caveat that needs to be taken into consideration.

Finally, the ensuing social media posts linking the results of this study with COVID-19 are provably false, as the data range of the sampled papers—1973 to 2019—predates the pandemic.does conclude that across 14,000 sperm samples involved in a number of independent studies, total sperm count was found to have declined by 1.4 percent per year and 62.3 percent overall between 1973 and 2018.

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