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Table 2 Comparison between study groups regarding directly-estimated IBL, need for blood transfusion, postoperative hemoglobin and hematocrit drop and calculated blood loss

From: Blood loss from transverse versus longitudinal uterine incision in abdominal myomectomy: a randomized controlled trial

  Transverse uterine incision group (n = 25] Longitudinal uterine incision group (n = 24] p
Estimated IBL (mL) (95% CI) Mean ± SD (95% CI) 389.7 ± 98.56 (349.0–430.4) 485.04 ± 230.6 (387.6–582.4) 0.07a
Need for blood transfusion 0 (0%) 1 (4.16%) 0.48b
Hemoglobin concentration (gm/dL)    0.68c
 Preoperative 12.34 ± 0.97 12.63 ± 1.22
 Postoperative 10.68 ± 1.02 10.13 ± 1.81
 Mean Paired − 1.65 ± 0.71 − 2.50 ± 1.84
 Difference (95% CI) (− 1.95 to − 1.36) (− 3.28 to − 1.72)
Hematocrit (%)    0.72c
 Preoperative 37.35 ± 3.01 38.25 ± 3.80
 Postoperative 29.92 ± 2.88 28.37 ± 5.07
 Mean Paired − 7.43 ± 2.12 − 9.87 ± 5.28
 Difference (95% CI) (− 8.31 to − 6.55) (− 12.10 to − 7.64)
Calculated IBL (mL) Mean ± SD (95% CI) 311.78 ± 78.85 (279.2–344.3) 388.03 ± 184.55 (310.1–465.9) 0.07d
  1. a Analysis using unpaired t-test with Welch’s correction
  2. b Analysis using Fisher’s exact test
  3. c Analysis using repeated measure ANOVA test. Only p value for between-subject effect is displayed
  4. d Analysis using unpaired t-test
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