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Table 5 Heterogeneity and publication bias assessment

From: Human-derived acellular dermal matrix may be an alternative to autologous grafts in tympanic membrane reconstruction: systematic review and meta-analysis

Outcomes I2 Potential source of heterogeneity Egger’s test
Graft success rate 0% none p = 0.835
Surgery time 90% Fu 2017 [29]; Yang 2019 [28]; Lee 2018 [22]; Liao 2017 [25]; Raj 2011 [24] p = 0.016
Postoperative pain (immediately postsurgery) 91% Raj 2011 [24] p = 0.178
Postoperative pain (1 day postsurgery) Not applicable Not applicable Not applicable
Hearing results (average AC) Not applicable Not applicable Not applicable
Hearing results (average BC) 0% none Not applicable
Hearing results (average ABG) 38% none p = 0.522
Hearing results (ABG reduction) 0% none Not applicable
Complications Not applicable Not applicable Not applicable
  1. Not applicable: the assessment is not possible because of the insufficient number of included studies