Skip to main content

Table 3 Comparison of perioperative changes in hemoglobin, iron, and ferritin levels based on the values at 4 weeks before surgery (baseline) between the two groups

From: Preemptive intravenous iron therapy versus autologous whole blood therapy for early postoperative hemoglobin level in patients undergoing bimaxillary orthognathic surgery: a prospective randomized noninferiority trial

Group Intravenous iron Autologous whole blood p
n 32 32
Change of hemoglobin level (%)
 Immediately before surgery  − 6.47 ± 5.51  − 16.36 ± 10.27  < 0.001
 Postoperative day 1  − 29.92 ± 11.21  − 29.73 ± 8.38 0.938
 Postoperative day 2  − 37.18 ± 10.07  − 30.64 ± 7.02 0.004
Change of iron level (%)
 Immediately before surgery  − 14.78 ± 39.97  − 35.95 ± 54.82 0.082
 Postoperative day 1  − 65.9 ± 23.04  − 76.26 ± 15.57 0.04
 Postoperative day 2  − 43.57 ± 33.42  − 56.27 ± 35.9 0.148
Change of ferritin level (%)
 Immediately before surgery 273.28 ± 324.54  − 20.53 ± 213.09  < 0.001
 Postoperative day 1 261.35 ± 281.57 45.38 ± 195.97 0.001
 Postoperative day 2 309.07 ± 344.98 53.55 ± 188.3 0.001
  1. Values are expressed as mean ± SD
  2. Changes (%) are defined as ((each value—value at 4 weeks before surgery)/value at 4 weeks before surgery) × 100