Following up: Place of birth vs. Testing Positive

Butch, from From The Cheap Seats, posed a question in the comments section in an earlier posting of mine about the concentration of players who tested positive for PED use since 2005. He was curious to see if the %’s of those testing positive matched the % of geographic origin.

I promised a follow-up when I could track down the info, and the good folks at Baseball-Reference.com were kind enough to show me how to find the data I needed.

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The table below lines up the information provided by ESPN (Players, by country, who have tested positive for PEDs, since 2005) with the birth information provided by B-R (Players birthplace, since 2005). I added in the % Variance column, which compares the % by birthplace to the % PEDs. A negative number indicates the % of PED use (or guilt) exceeds the relative composition by birthplace. For example, players born in the Dominican Republic accounted for 11.4% of all MLB players in 2005-06, however they accounted for 23.6% of the guilty PED tests. I also Indexed the % Variance to also show how Latin America’s been disproportionately accounting for guilty PED tests. A score of 100 means their PED test % equals their place of birth %. A score below 100 means lesser percentage of players from that country have tested positive than are in MLB during this time. A score above 100 indicates a higher degree of testing positive than the country accounts for in MLB composition.

Butch, thanks for asking the question. I hope this answered it. I also hope others found it at least interesting to see what’s going on. Clearly, more education and attention needs to head to Latin America.

 

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