Lo decided to take on Friday the 13th by sifting through the records of more than 49,000 patient encounters.
He examined emergency visits and admissions from six area hospitals for 13 Friday the 13ths from November 2002 through December 2009.
He examined the volume for 13 ailments, including heart attacks, car accidents, animal bites, psychiatric incidents and appendectomies.
He compared that to Fridays before and after, and the month before, and found visits and admissions were no higher on Friday the 13ths than other Fridays, save for one category.
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