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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Transfusion. 2010 Jan 22;50(6):1257–1264. doi: 10.1111/j.1537-2995.2009.02574.x

Table 2.

Number of donors in each group classified as having either no complication, a vasovagal complication (i.e., syncopal or presyncopal), or a phlebotomy-related complication (i.e., small hematoma or arterial puncture). Significantly fewer vasovagal complications were observed in the “water only” and “water + leg exercise” groups versus the “placebo control” group, and marginally fewer vasovagal complications were observed in the “water + leg exercise” group relative to “standard donation”.

Complication Type Standard Donation (n = 103) Placebo Control (n = 102) Water Only (n = 106) Water + Leg Exercise (n = 103)
None 82 76 94 91
Vasovagal 15 21 12 8
Phlebotomy 6 5 0 4