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Table 3 Comparison between the graft taken cases among the two studied groups regarding ABG preoperative, and 6 months postoperatively, along with a comparison between preoperative and postoperative ABG in both groups

From: Evaluation of the use of autologous platelet-rich fibrin in myringoplasty operation

ABG

Cases (n = 45)

Control (n = 35)

U

p

Preoperative

 Min.–max.

21.0–37.0

26.0–40.0

783.0

0.965

 Mean ± SD

31.60 ± 5.27

32.09 ± 4.02

 Median (IQR)

32.0 (27.0–36.0)

32.0 (31.0–36.0)

After 6 months

 Min.–max.

0.0–22.0

0.0–21.0

538.50*

0.014*

 Mean ± SD

6.49 ± 5.11

8.86 ± 5.72

 Median (IQR)

6.0 (5.0–7.0)

7.0 (6.0–12.0)

Z

5.864*

5.174*

  

p1

< 0.001*

< 0.001*

  
  1. SD standard deviation, IQR interquartile range, U Mann-Whitney test, Z Wilcoxon signed-rank test, p p-value for comparing between the studied groups, p1 p-value for comparing between preoperative and after 6 months. *Statistically significant at p ≤ 0.05