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Table 2 Categories for minimisation variables

From: The INTERVAL trial to determine whether intervals between blood donations can be safely and acceptably decreased to optimise blood supply: study protocol for a randomised controlled trial

  Men Women
Age <50 years ≥50 years <50 years ≥50 years
Weight <70 kg ≥70 kg <60 kg ≥60 kg
Donor status New Repeat New Repeat