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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Vox Sang. 2009 Dec 10;98(3 Pt 1):e219–e224. doi: 10.1111/j.1423-0410.2009.01274.x

Table 2.

Donors Deferred by Interview Process for First Time Donors

Deferred Not Deferred Total
Control Group 1 (September 11–30, 2000) 381* (23.0%) 1279 (77.0%) 1660
Post 9/11 Group 1 (September 11–30, 2001) 644 (18.1%) 2915 (81.9%) 3559
Deferred Not Deferred Total
Control Group 2 (January–March 2001) 1429 (18.4%) 6326 (81.6%) 7755
Post 9/11 Group 2 (January–March 2002) 1677 (18.9) 7220 (81.1%) 8897
*

p < 0.01 from Post 9/11 Group 1 and Control Group 2 and p < 0.001 from Post 9/11 Group 2