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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Ann Emerg Med. 2014 Mar 6;64(4):376–384. doi: 10.1016/j.annemergmed.2014.01.031

Table 1.

Patient Characteristics Across Four Time Periods (N=8421)

Dates Historical Control Education ACASI+Education Education
01/01/10 - 12/31/10 01/01/11-04/17/11 04/18/11-12/20/11 12/21/11-03/31/12
Number of Patients 3929 982 2601 909
Patients Whose Chief Complaint Not Indicative of STI*, % 83.4 83.5 84.1 83.6
Median age, years (Interquartile Range) 16.8 (15.9-17.7) 16.6 (15.8-17.6) 16.8 (15.8-17.7) 16.5 (15.7-17.6)
Female, % 54.7 56.4 54.9 56.5
African-American, % 68.9 67.2 61.7 59.1
*

Excludes all genitourinary or gynecologic chief complaints and abdominal pain in women